II.
Causes of a mole:
The number of
skin moles someone gets
depends a lot on our genes. Skin moles sometimes
appear in "crops," especially during the early teens.
No one knows why we get skin moles. Genetics and sun exposure are probably very important.
Pregnancy can cause
skin moles to get bigger, but if one
is getting bigger faster then the others, have it checked by
your plastic surgeon.