Birthmarks

Causes & Prevention

The Cause of Birthmarks is Unknown

No one knows what causes birthmarks, but experts agree on two things:

  • Birthmarks are not inherited.
  • Birthmarks are not caused by anything that happens to the mother during pregnancy.

What Does It Mean When Medical Experts Say "Race" Is A Risk Factor For Certain Diseases?

Editor's Note:

"Race" is sometimes mentioned as a risk factor in the development of certain cancers and a number of other diseases. When you read this in a discussion about an illness, note that the explanation seldom refers to anything biological. Instead, it usually refers to behavior, such as eating habits. The kinds of behavior usually mentioned as risk factors are culturally determined. They are not genetic or biological.