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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 and continues...
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 lines or dark stripes on the length of your fingernails or toenails (longitudinal melanonychia) have many causes—from vitamin deficiencies to cancer. Learn more.
Beau's lines. 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.
Longitudinal ridging, which is clinically known as onychorrhexis, occurs on the nails and may appear as vertical striations or lines that originate from the base of the fingernail and...
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.
The discoloration in the nails may be black or brown. Melanonychia can be a natural occurrence in people with dark skin, but it can also indicate health issues. The nail plate is usually...
Melanonychia can affect one or multiple fingernails or toenails. It can present as a brown or black discoloration that may start at the nail matrix or appear as a band across the nail. Total melanonychia affects the whole nail.
When checking your nails for melanoma, dermatologists recommend looking for the following changes: A dark streak. This may look like a brown or black band in the nail — often on the thumb or big toe of your dominant hand or foot.
If you have brown fingernails and the discoloration is round, as opposed to linear, it could be another condition. For example, brown spots on nails, especially if they're pitted, could be a sign...