Question

what is the reason for nail marks on skin​

Answer 1

Answer:

Please check it out.

Explanation:

A scar forms as part of the natural healing process following an injury. When the dermis — the second layer of skin — is damaged, your body forms collagen fibers to repair the damage, and that results in a scar.

I hope this helps you a lot.

Answer 2

Answer:

a scar forms as a part of natural healing following an injury.the second layer of skin dermis is damaged our body forms collagen to repair it which results in marks