Melanonychia occurs when you have brown or black lines in your nails. Learn about melanonychia, including the types and causes.

Melanonychia is a nail condition in which melanin is present in the nail plate. It has many possible causes and can sometimes be malignant, so an accurate diagnosis is vital.

Melanonychia can naturally occur in African American, Hispanic, Indian, Japanese, and other dark-skinned races. It appears as multiple bands that go from the nail bed to the tip of the nail.

Racial melanonychia is an increase of melanocytes within the nail matrix that can cause black lines on the nails. Melanocytes produce melanin, a natural pigment that gives color to your skin, hair ...

Melanonychia, also known as a dark or black line on the nail, causes a streak of dark pigmentation that runs along the nail bed.It can be a normal color variation, especially in people with darker ...

Linear melanonychia is considered a natural fingernail color variation. The condition occurs when pigments in the nail, known as melanocytes, make excess pigment. This causes the nail beds to darken.

I have had these two vertical dark bands on two fingernails for some time. Originally I didn't think much of it. But after several months, they still appear ...

Did you know that certain medications can cause symptom of 'Melanonychia'. Find these drugs listed on the page and be warned of similar symptoms as possible side-effects.

Pediatric longitudinal melanonychia should be treated differently from longitudinal melanonychia in adults, as lesions may grow darker or wider before stabilizing or improving, according to a ...

Hydroxyurea is an antineoplastic agent used most com-monly to treat both benign and malignant hematologic conditions. This medication inhibits ribonucleotide reductase to decrease DNA synthesis and ...