Fungal infections are a common cause of toenail discoloration, often leading to yellow, brown, or white nails. These infections can cause the nail to become thick, brittle, and crumbly.

Healthy nails are smooth and devoid of ridges grooves, spots, or discoloration. Discolored nails could be a sign of infection, drug reactions, or disease. Brown nails.

Chemotherapy can have odd effects on a person's hair and nails, but in one man's case, the cancer treatment created a particularly striking pattern. The 42-year-old man, who lives in Saudi Arabia ...

A brown line on a woman's fingernail turned out to be a rare form of melanoma. ... and the discoloration does not always happen. “Remembering to check your nails along with your skin is crucial.

A brown line on a woman's fingernail turned out to be a rare form of melanoma. ... and the discoloration does not always happen. “Remembering to check your nails along with your skin is crucial.

A brown line on a woman's fingernail turned out to be a rare form of melanoma. ... and the discoloration does not always happen. “Remembering to check your nails along with your skin is crucial.

A brown line on a woman's fingernail turned out to be a rare form of melanoma. ... and the discoloration does not always happen. “Remembering to check your nails along with your skin is crucial.

(Gray News) - A brown line on a mother’s fingernail turned out to be a rare form of melanoma, according to the Cleveland Clinic. Lauren Koltcz, 45, said she noticed a brown streak on her thumbnail one ...