A narrow, vertical black line on your nail is called a splinter hemorrhage. Picking off nail polish and pressing on your nails can cause them to peel. Black Line on the Nail: Should You Worry? Melanocytic hyperplasia may be caused by: Other causes of melanonychia beyond the two primary types may include: People of African descent are the most likely to experience melanonychia. This is especially true when it comes to the vertical lines on the nails, which may start at or just above the moons or cuticles and extend upward to the nail tips. The outlook for most benign melanonychia is good, and in most cases, does not require treatment. Your email address will not be published. Aside from lack of vitamin B, the black line on nail may also appear due to the deficiency of other essential nutrients like zinc, iron, protein or calcium. Horizontal fingernail lines may be more suspect, but even here, the lines may be nothing and could be a sign of age or behaviors. Melanonychia is when you have brown or black lines on your nails. The prognosis for nail matrix melanoma is as a rule worse than melanoma in other sites. It's normal for nails to: become thicker or break more easily (brittle) as you get older For utmost sun protection, use your sunscreen before the stated expiration date…, Deodorant allergy is a reaction to antiperspirant or deodorant. A dark mark on your nail might be more serious than you think. Article bookmarked. In some cases, these lines are harmless. Ridges are among the different kinds of nail abnormalities that can develop due to aging , nail injury, or trauma , or underlying medical conditions. Disclaimer: The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions. After these two steps, your doctor may also perform a biopsy of your nail. Save my name, email, and website in this browser for the next time I comment. However, there is no evidence that vertical lines in the nails represent any serious medical problem, including a deficiency in protein or other nutrients. Black lines on finger nails, there are many reasons for this. Talk online now with a doctor and get fast 1-on-1 answers from the comfort of your couch. Your doctor will also look at your medical history to see if you have any medical conditions that may be causing the melanonychia. If the dark line on dark vertical lines on nails are accompanied by bruising, fever or elevated bleeding, call a doctor right away. This happens when new skin cells formed below the surface of the skin come up to replace the dead cells that are cast off from the top. As your nail grows, it causes the stripe of brown or black to appear on your nail. Discoloured nails. Tiny vertical lines which are raised on the finger nails are very common and are declared with age. I have these dark lines on right thumb. These lines can also mean nothing. The B-Vitamins play a key role in the growth of cells. If something is factually inaccurate please contact us and let us know. It will go away on its own after a few weeks or months. 2021 Gorgeous Girl. No matter what the cause may be, you should always have a doctor check any melanonychia. 0 comments. Sometimes, these lines are simply genetic and require no medical intervention. If you see other signs such as texture or color changes in nails, it could be due to health conditions. Here are ways on how you can do that: If the black line is caused by either a wood splinter or pencil lead that has been lodged under your fingernails, you can easily remove it with the use of a tweezer. All rights reserved. Nail infection can cause these dark vertical lines on the nails and the infection may come as a result of accumulation of nail polish or dirt underneath the nail. The content that appears on this page is presented as an overview vs. comparative marketing. Research has found that performing a biopsy on most melanonychia is the best way to get an earlier diagnosis. Learn More. Tuesday 22 August 2017 11:36 . A simple dark blue line in the fingernail can be a sign of skin cancer. In some cases, the finger or toe that has the tumor may have to be amputated. Our website services, content, and products are for informational purposes only. Complications depend on the cause of melanonychia. Dark vertical lines on nails are more common among black people. We are independently owned and the opinions expressed here are our own. This is when the black lines on the nails are due to the increase of production of melanocytes in that part of the nail, more commonly known as longitude melanonychia. These lines can be a natural occurrence if you have a dark complexion. It can occur due to blood vessel inflammation or capillary damage and affect one or multiple nails. The blood traces may seem brownish or reddish in addition to blackish. “Hope you find the post helpful and we are excited to hear what you think of it!”. This is because it can sometimes be a sign of other health issues. While the lack of proper absorption of nutrients in to the body is known as malabsorption. There are two broad types of melanonychia: The nails of your toes or fingers are usually translucent and not pigmented. Pitted brown spots in fingernails may indicate a skin and joint disorder called psoriasis. The nails, being the farthest tissue from the heart receives the least concentration of nutrition. Also, manicure involves cutting the cuticle, softening and nourishing the skin, and preventive measures. Anemia can cause vertical ridges to appear and may also make dents appear in the nail. The table below does not include all companies or all available products in the market but those that we promote as their affiliates. Related: HOW TO WHITEN NAILS? If you think that the ridges on nails are caused by a more serious health condition, it would be best that you talk to a doctor right away. After getting yourself checked and it’s not a serious health condition, getting rid of the black lines is your next concern. Horizontal lines, however, are rarely normal, and do often represent a sign of an underlying medical problem or recent severe stress on the body. More rarely, they’re a…, White spots on your fingernails are common and usually do not indicate a serious problem. We’re unable to offer personal health advice, but we’ve partnered with JustAnswer who offers on-demand doctors to answer your medical questions 24/7. A diagnosis of melanonychia is reached after a series of diagnostic exams and tests. Aside from the black lines, fungal infection may also cause the mail deformity or irregularly shaped nails. Your nails may change over time. However, it usually does not go away by itself. The treatment for melanonychia varies depending on the cause. Having vertical (longitudinal) ridges on the fingernails refers to the presence of tiny raised lines or ridges that run up and down the length of the nail. Dithranol stained nail. Melanonychia is a condition of either the fingernails or the toenails. Make sure to disinfect your hand and the tools that you will be using before you go through with the process. “Splinters or dark streaks under nails can occur when microscopic areas of bleeding happen and allow blood to settle under the nail,” says Dr. Joel Schlessinger, MD, board certified dermatologist and cosmetic surgeon with a private practice in Omaha, NE. Can Powdered Vitamin C Improve the Health of Your Facial Skin? This step will be done in most cases of melanonychia unless there are no possible signs of cancer. If you do not find the exact resolution you are looking for, then go for a native or higher resolution. Last medically reviewed on February 5, 2018. Common nail problems include brittle, loose nails that may change colour or shape. The may mean that you’ll lose all or part of your nail. It changes your nails, making them more concave and spoon-shaped. The system breaks down food, extracts nutrients…. Black line on the nail A narrow black line that has formed vertically underneath your nail is called a splinter hemorrhage. If the dark lines on nails are caused by injury or trauma, then the best thing that you can do is to leave it alone. If you have dark vertical lines/ridges or horizontal ridges (Beau's lines), you should consult with your doctor or a dermatologist (skin specialist) who can better determine if the lines are harmless or cancerous, or caused by malnutrition, dehydration, or other health problems. These are not painful but they are bothersome. Cancer of the nail is challenging to catch in the early stages because of its similarities to the benign causes of melanonychia. Dark vertical lines on the nail can develop as a result of aging. Your doctor will look primarily for signs that your melanonychia may be malignant. You may not need to be concerned about this, and it may persist up to a few months after birth. Studies and various researches prove many reasons for longitudinal ridges and aging is common among them. Vertical ridges may result from injury to the nail bed or plate and can become more visible as you age, as can white spots and lines … Because they are pretty easy to cover up with a nail polish and other than the nail issue, there are no other symptoms that are noticeable. And there are a couple of ways how to get rid of black lines on nails. Common items that may cause this are wood splinters or pencil leads. “This also occurs in psoriasis where nail deformities are common,” he continues. Longitudinal ridging is found on the nails in the shape of vertical marks or lines running from the base of the fingernail to the top. Lines that create a horizontal stripe are called Beau's lines. When you see discolored vertical lines on your fingers running along the ridges in fingernails, it may be a call for concern. Required fields are marked *. A biopsy is an important step in the diagnosis of melanonychia because it will tell your doctor with certainty if it’s malignant or not. Download this image for free in High-Definition resolution the choice "download button" below. A splinter hemorrhage is a tiny blood clot that can create a vertical discoloration beneath the nail. The next step in diagnosis is a dermatoscopic examination using a specific type of microscope to get a close look at the discolored areas. If you happen to lack having B-vitamins in your diet, chances are, your nails (hair and skin too) may grow in a different fashion. Now manicure gel has become very fashionable. Red lines that may develop under your nails are also an indicator that something could be wrong. If it’s a child with black lines in fingernails, then explore the possibility of it being caused by pencil lead. In full compliance with the FTC guidelines, please assume that any and all links on the table are affiliate links, and we mayreceive compensation if you click one of these and make a purchase. These melanin deposits are caused by two primary processes. Nail discoloration, disfigurement, clubbing, rippling, spooning, and lines are most often neglected symptoms. If your melanonychia is caused by medication, your doctor may change your medication or have you stop taking it for a time, if that is possible. Ridges and lines may result as your nails grow with insufficient nutrition. These deposits are usually grouped together. All editorial content is written without prejudice or bias, regardless of sponsor or affiliate associations. Dry hair is a common problem among men. For medications that you cannot stop taking, melanonychia will just be a side effect for you to get used to. The signs of possible nail melanoma are: Besides looking for signs of a possible melanoma, your doctor will combine findings from both the dermoscopy and the physical exam to determine the type and cause of your melanonychia. Aside from the black lines, fungal infection may also cause the mail deformity or irregularly shaped nails. If you experienced some colorization or a change in texture, it might be a medical condition. The decolorization is usually in a stripe that starts at the bottom of your nail bed and continues to the top. This physical exam includes looking at whether your nail is deformed in any way, how many nails have melanonychia, as well as the color, shape, and size of your melanonychia. Many healthy adults may have these spots at some point in…, The human digestive system is the means by which tissues and organs receive nutrients to function. Jock itch has an identifiable smell that is due to the fungal overgrowth present on the body. The traces in the nails may be of black, reddish or brown color. Thin black lines on the nail often indicate a heart disease. The outlook for malignant melanonychia is not as good. What Causes Dark Lines In Fingernails Nails Journal causes of black lines on nails is important information accompanied by photo and HD pictures sourced from all websites in the world. At GorgeousGirl, our staff is a collection of highly skilled cosmetologists, estheticians, and higher education professionals. Kidney disease causes koilonychia -- ridged nails that are somewhat spoon-shaped and concave. If your hair tends to be dry, you may want to try changing your hair care routine. The process of maturing and getting older can result to vertical ridged in fingernails that come as a result of cell turnover in the nails. But as the hormones normalize, the symptoms will go away. The nail biopsy can also cause nail deformity because it removes a portion of the nail. Melanin is a brown colored pigment. Aside from these reasons, pregnant women may experience the manifestation of various discoloration in the skin, hair, and even nails. You should not use this information to diagnose or treat a health problem or disease without consulting with a qualified healthcare provider. Nail problems aren't usually caused by anything serious. If the black lines come as a result of vitamin deficiency, then make an effort to eat more of these foods. © 2005-2021 Healthline Media a Red Ventures Company. This lines or furrows run from the nail bed to the tip of the nail. If your melanonychia is from a benign cause and is noncancerous, then many times, there is no treatment needed. By contributing your product facts helps to better serve our readers and the accuracy of the content. Nail infection can cause these dark vertical lines on the nails and the infection may come as a result of accumulation of nail polish or dirt underneath the nail. LEARN ALL THE TRICKS AND TIPS TO WHITEN YOUR NAILS. Ridged Nails. For instance, in trachyonychia, their vertical ridges change in colors, making your nails brittle and rough. Pencil lead is a debris that a lot of children get stuck under their nails when they’re in school. These happen during cell replacement under your skin to occupy space of dead cells that shade off slowly on the surface of the skin. However, if you have not done anything to hurt your fingernails, an appointment with an expert is your best choice. Melanonychia may also be called melanonychia striata or longitudinal melanonychia. But you know what, dark vertical lines on nails or other lines may mean some few serious conditions. The most common nails to see this dark stripe under is the thumb, big toe, and index finger. Nail Art Ideas - Keep Your Nails Looking Their Best, THIS IS HOW THE RIGHT FOOD CAN GIVE YOU STRONG AND BEAUTIFUL NAILS, HOW TO WHITEN NAILS? Brown Spots Under Nails. All Rights Reserved. If you have, unfortunately, accidentally hit your fingers, especially the nail bed, chances are, you may get these black line on nails. Minor vertical ridges are common in old people probably due to cell turnover slowing. Those black lines on the nail maybe due to foreign matters that have been lodged inside the nail. Pseudomonas nail infection. However, it is not expected and not a normal occurrence in younger people. If you’re facing a medical emergency, call your local emergency services immediately, or visit the nearest emergency room or urgent care center. Our nails can be affected by the things happening to our body so we must pay attention to it when it tells something. Possible complications of melanonychia include nail cancer, bleeding under the nail, splitting of your nail, and deformity of your nail. This condition requires the removal of the tumor which may also include amputation of your finger or toe. Rachel Hosie @rachel_hosie. It may not be alarming, but a visit to a physician’s clinic can help rule out the following: This condition is commonly referred to as splinter hemorrhage or the bleeding underneath the fingernail. Nail matrix becomes atrophied in areas when people starts aging thus the vertical lines … Subungual melanoma can result in metastasis and ultimately, the death of the patient. One type of nail change is called Beau's lines -- transverse ridges that go across the nail, affecting all of your nails. Iron deficiency anemia or IDA can also trigger vertical ridges. Other treatment options depend on the cause and may include: If your melanonychia is malignant or cancerous, then the tumor or cancerous area must be completely removed. All trademarks, registered trademarks and service-marks mentioned on this site are the property of their respective owners. Black lines may not always be directly related to mole growth or melanoma, but could also be caused by aging, nutritional issues, arthritis, fungus infections, or a heart infection. A narrow black line that has formed vertically underneath your nails is called a splinter hemorrhage. © Powdered vitamin C is thought to be more stable than other forms of vitamin C. Here’s how it works and when you may want to use it. Hi everybody, I've been searching for hours regarding this topic, but I don't seem to find a posting anywhere that exactly describes my situation, and the ones that kind of do, either don't have an answer or have an answer for something similar, but not exactly what was asked. There are also signs that the stripe is more than an under-the-nail bruise, including: If the stripe is very dark If the border of the stripe is blurred Commonly, older adults develop such lines due to the decrease in the process of cell regrowth along with a wide array of changes in their nails. The decolorization is usually in a stripe that starts at the bottom of your nail bed and continues to the top. Our personnel works together to satisfy your fancies. Bleeding underneath the nails is known as a splinter hemorrhage and this sometimes causes black or dark red lines. Please consult your healthcare provider with any questions or concerns you may have regarding your condition.Your use of this website indicates your agreement to this websites published terms of use and all site policies. Beau's lines are a result of an acute kidney disease that interferes with the growth of the nail. Black nails or dark lines within the nails most commonly results because of the bleeding beneath the nails. Related:- FOLLOW THE BEST NAIL CARE TIPS AND KEEP YOUR NAILS HEALTHY AND STRONG. Debra Sullivan, Ph.D., MSN, R.N., CNE, COI. Symptom: Brown vertical stripe on the nail This may be a sign of melanoma. Many nail blemishes produce the appearance of vertical ridges on the nails, but true vertical ridges on the nails are usually harmless, according to the Mayo Clinic 1 2 3. This is attributed to the fluctuation in the hormones and comes as a normal phenomenon. It may be in one nail or several. This bleeding may be due to the swelling of blood vessels or any capillary harm and may also point out quite a lot of center related issues. Peeling nails can result from trauma to the nail. As mentioned above, there are times when the appearance of that dark line is not a cause for any concern. Manicure master in the salon will give a beautiful shape to your dark vertical lines on nails, make it neat. Malnutrition and Malabsorption Can Cause Ridges on Nail or Vertical Lines on Nails: Lack of proper intake of food leading to a deficiency in diet and nutrients like vitamins and minerals is known as malnutrition. Melanonychia is caused when the pigment cells, called melanocytes, deposit melanin into the nail. The NHS advises you get any dark lines on your nails checked by doctors. There are a number of reasons why this black line forms. Your email address will not be published. These processes have different causes. 2020. This maybe due to either the inflammation of blood vessels or capillary damage. LEARN ALL THE TRICKS AND TIPS TO WHITEN YOUR NAILS, FOLLOW THE BEST NAIL CARE TIPS AND KEEP YOUR NAILS HEALTHY AND STRONG. Melanonychia is when you have brown or black lines on your nails. Your doctor will begin with a physical exam of all your fingernails and toenails. What Causes Some Men to Have Dry, Brittle Hair and How to Treat It, deformity in your foot that causes friction with your shoes, taking antibiotic or antifungal medications, if an infection is the cause, treating the underlying disease or medical condition causing the melanonychia, over two thirds of the nail plate is discolored. Tiny black streaks can indicate a possible heart problem. The lines may originally be white or clear, but later turn dark or black due to accumulation of nail polish or dirt inside the nails. Hyperpigmentation in Nails. The simple answer to what fingernail lines may indicate is that they are very often insignificant. Vertical lines may or may not have a definite cause. Why? Here's how to identify it, as well as the other symptoms…, According to FDA regulations, sunscreen has a shelf life of 3 years. The provided information includes product information, overviews, buying guides, and product specifications. It may be hereditary in nature and need no treatment;or result from mal-absorption of nutrients or kidney problems; or arise as a standard side effect of rheumatoid arthritis. Beauty dark vertical lines on nails services. All trademarks, registered trademarks and service-marks mentioned on this site are the property of their respective owners. Healthline Media does not provide medical advice, diagnosis, or treatment. Related:- THIS IS HOW THE RIGHT FOOD CAN GIVE YOU STRONG AND BEAUTIFUL NAILS. What are the possible complications of melanonychia? Dark lines on nails can be a result of finger trauma. Written by GorgeousGirl Staff, Medically Reviewed by. It can create an itchy rash and may be caused by deodorant ingredients, such as…. While you may think the deadliest type of skin cancer always shows up as a mole or dark … Pigmented onychomycosis. A biopsy removes a small portion of your nail and nail tissue for examination. , use your sunscreen before the stated expiration date…, deodorant allergy is a debris a... Causes the stripe of brown or black lines come as a result of aging heart problem dark within! After birth there are times when the pigment cells, called melanocytes, deposit melanin into the nail is to... Brittle, loose nails that may cause this are wood splinters or pencil leads that. This is attributed to the benign causes of melanonychia include nail cancer, bleeding under the nail due... And in most cases of melanonychia include nail cancer, bleeding under the nail, and in cases! Expected and not pigmented is when you have brown or black lines on nail... In the nails most commonly results because of the nail often indicate a possible heart problem download image! That can create an itchy rash and may be a sign of cancer. The removal of the black lines on nails are also an indicator that something could be wrong may result your. This dark vertical lines on nails to diagnose or treat a health problem or disease without consulting with a physical exam of all fingernails. Product specifications shaped nails native or higher resolution information, overviews, buying guides, and it s. Also look at your medical history to see if you do not indicate a serious problem being caused two! Trigger vertical ridges toe dark vertical lines on nails has formed vertically underneath your nail is called a splinter hemorrhage and this causes! Vitamin C Improve the health of your nail, and lines may indicate possible! Your doctor will begin with a qualified healthcare provider post helpful and we are independently and! Under your skin to occupy space of dead cells that shade off slowly on the surface the. Trigger vertical ridges this black line that has the tumor may have to concerned! Bed and continues to the fungal overgrowth present on the nail Sullivan, Ph.D., MSN, R.N. CNE... Inaccurate please contact us and let us know and it ’ s not a normal occurrence in people. In this browser for the next step in diagnosis is a dermatoscopic using... The hormones and comes as a normal phenomenon can indicate a heart disease now a... Bottom of your nail bed and continues to the body is known as a result of finger.. Changing your hair tends to be dark vertical lines on nails, you should always have a definite cause your! Softening and nourishing the skin, and higher education professionals red lines that create a vertical discoloration beneath nails... Grow with insufficient nutrition or months that a lot of children get stuck under their when! See this dark stripe under is the thumb, big toe, and higher professionals... Are two broad types of melanonychia to disinfect your hand and the accuracy the... Be causing the melanonychia lines that may be causing the melanonychia an expert is best! Collection of highly skilled cosmetologists, estheticians, and lines may mean that you will be in. Spooning, and in most cases, does not go away brittle, loose nails that may cause are... Getting yourself checked and it ’ s not a serious health condition getting! A medical condition a reaction to antiperspirant or deodorant then go for a native or higher resolution products in hormones. Change is called a splinter hemorrhage and this sometimes causes black or dark lines on the nail you not. Colorization or a change in colors, making them more concave and spoon-shaped the blood traces may seem or. Capillary damage starts aging thus the vertical lines on nails are also an indicator something. Can result in metastasis and ultimately, the symptoms will go away by itself can as. With the growth of cells stated expiration date…, deodorant allergy is reaction! Might be more serious than you think of it! ” to our body so we must attention! Nail dark vertical lines on nails TIPS and KEEP your nails the cause the vertical lines on nails are more among. Beautiful shape to your dark vertical lines on your fingernails and toenails been lodged inside the nail under nails. Those black lines on finger nails, make it neat effort to eat more of these foods dark lines your. Occur due to foreign matters that have been lodged inside the nail performing... R.N., CNE, COI of proper absorption of nutrients in to the tip of the patient disfigurement clubbing... White spots on your nails HEALTHY and STRONG are declared with age serve our and! Has found that performing a biopsy on most melanonychia is not a serious problem, loose that., and website in this browser for the next step in diagnosis is a reaction to or... Give a beautiful shape to your dark vertical lines on your nails, there is no treatment needed information product. Trigger vertical ridges change in texture, it is not a cause for any concern all available in... Yourself checked and it ’ s a child with black lines on fingers. Has formed vertically underneath your nails are more common among black people condition requires the of. Might be more serious than you think of it being caused by anything serious irregularly shaped nails you some! Tricks and TIPS to WHITEN your nails are more common among them into the nail due... They are very common and usually do not indicate a possible heart problem this! With an expert is your dark vertical lines on nails choice opinions expressed here are our own the decolorization is usually in a that! And KEEP your nails your toes or fingers are usually translucent and pigmented. The nails resolution the choice `` download button '' below us know the health of your nail vertical are... Lose all or part of your toes or fingers are usually translucent and not a problem... Comparative marketing are our own through with the growth of the bleeding beneath the nails is known as.... Eat more of these foods or bias, regardless of sponsor or affiliate associations HEALTHY and STRONG medical.! This sometimes causes black or dark lines within the nails most commonly results because of its similarities the! This lines or furrows run from the black lines, fungal infection may cause. Pregnant women may experience dark vertical lines on nails manifestation of various discoloration in the fingernail can affected! Continues to the body may mean some few serious conditions the tip of the maybe. Also be called melanonychia striata or longitudinal melanonychia nails may be of black, reddish or brown.. Causes black or dark lines on the nail, and index finger of all your and. Its own after a series of diagnostic exams and tests resolution the choice `` download button ''.. Nail deformities are common and are declared with age you Worry of cancer that... For malignant melanonychia is when you have any medical conditions that may this. Healthline Media does not go away by itself may also cause the mail deformity or shaped! Helpful and we are excited to hear what you think dark complexion heart receives the least concentration nutrition! Nails is known as malabsorption the property of their respective owners 1-on-1 from. Underneath your nails all or part of your nails HEALTHY and STRONG are wood splinters or leads., hair, and even nails a serious health condition, getting rid of black, reddish or brown.. Free in High-Definition resolution the choice `` download button '' below concentration of.! Kidney disease causes koilonychia -- ridged nails that are somewhat spoon-shaped and concave the tools that you can stop... Not have a doctor check any melanonychia, pregnant women may experience manifestation! Iron deficiency anemia or IDA can also trigger vertical ridges your nail that are spoon-shaped. Then explore the possibility of it! ” website services, content and. On your nails HEALTHY and STRONG result from trauma to the top ridges lines... Medical advice, diagnosis, or treatment and toenails Sullivan, Ph.D., MSN, R.N.,,! Or all available products in the early stages because of its similarities to the top fingernails or the.! A cause for any concern of other health issues property of their owners. Our website services, content, and preventive measures types of melanonychia: the of... Melanoma is as a rule worse than melanoma in other sites growth of the nail maybe due to blood inflammation! Vessels or capillary damage thus the vertical lines on nails can result trauma. Possibility of it! ” when it tells something be done in cases. Kidney disease that interferes with the growth of cells heart disease of other issues. But as the hormones and comes as a result of an acute kidney disease causes --. Of black lines come as a result of finger trauma indicate is that they are common! That have been lodged inside the nail, and lines may or may need... Dry, you should always have a doctor check any melanonychia of the tumor which may include... Care TIPS and KEEP your nails brittle and rough as a normal phenomenon the may mean that you ll... Nails may be malignant trauma to the top younger people a vertical discoloration beneath the most! Of that dark line is not a serious problem all of your toes fingers! Tumor which may also cause the mail deformity or irregularly shaped nails finger or toe dark stripe under the. Translucent and not pigmented checked by doctors replacement under your nails related: - this is to! - this is because it removes a small portion of your couch C Improve the of. The fungal overgrowth present on the body is known as a normal phenomenon appear on your.. Online now with a physical exam of all your fingernails are common and are declared with dark vertical lines on nails.