MadSci Network: Medicine

Re: What causes acne?

Date: Fri Aug 21 11:25:23 1998
Posted By: kathi clement, faculty md, family practice, Univ. of Wyoming
Area of science: Medicine
ID: 902372398.Me

Shannon-Acne is a disease of the sebaceous glands.   These glands are all 
over the body, but the largest and most are on the face, chest, back and 
upper outer arms.  These glands make sebum, which is the pathogenic factor 
of acne.  There are also normal skin bacteria (Propionibacterium acnes)that 
multiplies in sebum, so that inflammation occurs.  
What are some factors that influence acne?  If your parents had problems 
with acne, you too may have a problem.  Hormones influence sebum production 
also.  Testosterone acts on the gland to increase the size and amount of 
sebum, thus the onset or worsening of acne for boys during adolescents.  
Stress and anger too may worsen acne.  Some women will have acne flares 
around their period for years.  Foods do not cause acne...
I hope this answers your question. 

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