Melanonychia: What It Is, Causes, and More - Healthline
网页2023年10月3日 · Having a dark line on your fingernails or toenails is called melanonychia. The lines are brown or black and usually look like a stripe that begins at the bottom of your nail bed...
What's Causing That Black Line on Your Nail - Healthline
网页2024年2月5日 · A small black line that forms vertically underneath your nail may be a splinter hemorrhage, while horizontal lines may be melanonychia. These may be harmless or a sign of a more serious...
Black line on the nail: Causes, treatments, and pictures
网页2024年4月24日 · A look at a black line on the nail, a common change that can happen due to a range of causes. Included is detail on the diagnosis and when to see a doctor.
Black Line on Nail: Causes, Treatment, and More - Verywell Health
网页2023年8月1日 · Melanonychia is the most common cause of a black line on a nail. This condition is characterized by black or brown discoloration of the nail plate. It can affect just one nail or multiple nails on the fingers and toes. It accounts for nearly half of all cases of nail discoloration.
7 fingernail problems not to ignore - Mayo Clinic
网页2023年6月30日 · Beau's lines are grooves that run across the nails. They can appear when nail growth temporarily stops due to injury or illness. Beau's lines may be caused by: Infections. Diabetes that is not well controlled. Conditions in which narrowed blood vessels lower blood flow to the arms and legs. This is called peripheral artery disease.
Black Line on Nails: Causes, Treatment, and More - Healthgrades
网页2022年10月30日 · A black line on the nail describes a narrow, longitudinal stripe that forms under the nail plate. It often results from splinter hemorrhages, longitudinal melanonychia, and, in some cases, subungual melanoma. Doctors often diagnose the cause of nail marks by examining the nails and reviewing your medical history.
What Is Melanonychia? What Causes It and How It's Treated - WebMD
网页2023年7月23日 · Melanonychia is a brown or black color in your nail. It can affect your fingernails or toenails. It can be in one nail, a few nails, or all of your nails. Melanonychia can have many different...
Brown Line on Nails: Vitamin Deficiencies and Other Causes
网页2023年9月1日 · Brown lines or dark stripes on the length of your fingernails or toenails (longitudinal melanonychia) have many causes—from vitamin deficiencies to cancer. Learn more.
Melanonychia - DermNet
网页Melanonychia is brown or black discolouration of a nail. It may be diffuse or take the form of a longitudinal band. Benign longitudinal melanonychia. See more images of melanonychia. Who is at risk of melanonychia? Melanonychia can present in individuals of all ages, including children, and affects both sexes equally.
Black Lines on Nails: Causes and Treatments - POPSUGAR
网页2024年1月30日 · According to Healthline, a splinter hemorrhage is a "narrow black line that has formed vertically underneath your nail." It can look black or reddish brown in color, doesn't change...
跳至内容