Melanonychia: What It Is, Causes, and More - Healthline
2023年10月3日 · A dark vertical line on the nail can indicate nail melanoma. It can also occur with other benign causes and requires diagnosis by a healthcare professional.
What's Causing That Black Line on Your Nail - Healthline
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...
What Is Melanonychia? What Causes It and How It's Treated - WebMD
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.
Black Line on Nail: Causes, Treatment, and More - Verywell Health
2023年8月1日 · A black line on the nail could be normal, such as when it is just a color variation. Other possible causes range from injury or taking certain medications to various health conditions like human immunodeficiency virus (HIV) and melanoma.
Brown Line on Nails: Vitamin Deficiencies and Other Causes
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.
Black line on the nail: Causes, treatments, and pictures
2024年4月24日 · A black line in the nail may be simply a color variation, but it can also result from an injury. Other possible causes include the use of certain drugs and various health conditions, including...
Subungual Melanoma (Nail Melanoma): Symptoms and Treatment
Subungual Melanoma. Subungual melanoma is a serious type of skin cancer that develops under your nail. It most commonly appears as dark brown or black streaks on your nail. Early detection and prompt treatment yield the best outcomes.