The cause
of acne is unknown. Doctors think certain factors might cause it:
1 : The
hormone increase in teenage years (this can cause the oil glands to plug
up more
often)
2 :
Hormone changes during pregnancy
3 :
Starting or stopping birth control pills
4 :
Heredity (if your parents had acne, you might get it too)
5 : Some
types of medicine
6 :
Greasy makeup.read more...
