Have you ever taken off your nail polish only to notice a dark line on the nail running ... Most of the time, thin, vertical ...

One of the first signs of nail melanoma is a vertical dark brown or black line running vertically on the nail. Other symptoms ...

Doctors advise vigilance regarding nail changes, as these may indicate health issues, including a rare skin cancer called ...

Symptoms like dry or yellow nails, white spots, and dark lines may be normal ... Horizontal or Vertical Ridges Some people may have lines running up and down or sideways on their nail, or ridges.

While brittle nails can be caused by dehydration or overexposure to chemicals, if they accompany other symptoms, it could indicate a deficiency. You might also notice dark lines or streaks under ...