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 ...

Turning your fingernails and toenails into vibrant works of art can showcase your style and personality. But what happens when your nails change color on their own? In that case, you might wonder if ...