What causes birthmarks to form ?!
Question:
What causes birthmarks to form ?
just a question why do some people get them and others don't?
Answers:
oh! ok i got it...
A birthmark is a blemish on the skin formed before birth. They are part of the group of skin lesions known as naevi. The cause of birthmarks is unknown, but may include cellular damage due to radiation or chemicals. Some types seem to run in families.