How does the mole on the neck dig out to be met

Pigmented nevus is a benign tumor, formed by black melanin cells, located in the superficial layer of the dermis. Be careful to dig out the nevus, and apply anti-infective drugs in time. However, if you repeatedly scratch, it will stimulate the pigmented nevus, which can cause cancer of the pigmented nevus. It is recommended to go to the hospital for surgery in time.