Have you noticed a change to any of your nails lately? A change in color, texture, or shape can be harmless, but it can also be a sign of disease. If you notice any of the following changes to a fingernail or toenail, it’s time to see a board-certified dermatologist.

1. Dark streak(Acral lentiginous melanoma)

2. Nail lifting up(Onycholysis)

3. Redness and swelling around a nail(Paronychia)

4. Greenish black color(Paronychia)

5. Pitted nails(Pitting)

6. Yellow nails(Yellow nail syndrome)

7. Deep grooves(Beau lines)

8. Ram’s horn nails(Onychogryphosis)