Causes of Alopecia
By Dr Ananya Mandal, MD
There are several types and causes of alopecia or hair loss. Hair loss may occur as a natural part of aging, due to a disease, injury or due to drugs and medications. The causes of alopecia or hair loss include:-
Male and female pattern baldness
Male-pattern baldness commonly runs in families and may be influenced by levels of hormones. A hormone dihydrotestosterone (DHT) is made from the male hormone testosterone.
In genetically susceptible individuals the hair follicles are exceptionally sensitive to this hormone DHT. Excess DHT leads to thinning and falling of hair. The hair grows for shorter duration and the length of the hair is also shorter than usual. At a given time different areas of the scalp may be affected.
http://www.news-medical.net/health/Causes-of-Alopecia.aspx
