Medically reviewed by Susan Bard, MD Melanonychia, a black line on your nail, can be a sign of melanoma or benign pigmentation changes.Injuries, medications, and conditions like hyperthyroidism may ...

Toenail discoloration can be more than just a cosmetic issue; it can be an indicator of underlying foot health problems. Changes in the color, texture, and thickness of your toenails can reveal a lot ...

A black line on the nail could be normal, such as when it is just a color variation. Other possible causes range from injury ...

Having a white spot on your nails is one of the most common — and commonly misunderstood — nail issues. For instance, contrary to popular belief and countless internet rumors, white spots on nails ...