Causes of Moles

Genes have been found to influence the presence of moles on a person’s body.
Moles manifest when epidermal cells grow in a bunch or cluster rather than spread out over the skin. These cells are responsible for skin pigmentation. Melanocytic Nevi darken after being exposed to the sun, during pregnancy or during teenage years.

With the passage of time, moles change slowly; they may become elevated or change color. Very often, hairs develop on them.