A black line on your nail (medically known as melanonychia) causes a streak of dark pigmentation that runs along the nail bed. It can be a normal color variation, especially in people with darker skin ...

This summer, Charmaine Sherlock noticed a thin black line under her nail of her left thumb — what looked like a splinter growing from her cuticle. She thought perhaps she was having an autoimmune ...

A woman who shared a photo of faint black lines on her thumb and toe nails on Reddit was urged to see a doctor after commenters warned the marks can sometimes indicate melanoma. Medical sources say ...

Experts review warning nail features, from inflammatory conditions to tumours, offering practical guidance on diagnosis and treatment choices.

She hit the nail on the head. A manicurist in Scotland is being lauded for spotting a thin brown streak under a client’s nail — which led to a melanoma diagnosis. Stacey Boss, 32, said she had ...

A woman had a line on her nail that looked like a splinter, which was an aggressive skin cancer. Charmaine Sherlock didn't think that such a small mark could be as dangerous as melanoma. Sherlock told ...

Drug-induced nail disorders are uncommon adverse reactions that can occur as a result of drugs, with nail abnormalities being due to acute damage to the nail unit leading to symptoms associated with ...