There are believed to be approximately 30 conditions that cause hair loss in women, and many can be resolved with proper treatment. Women experiencing hair loss should consult with their physician to determine the cause of their hair loss and eliminate any serious medical conditions before evaluating hair loss treatments.
The most common causes of hair loss in women:
Crash dieting or poor nutrition
Birth control pills
Hairstyles that stress the scalp (traction alopecia)
Extreme stress
Iron deficiency
Hormonal imbalances like pregnancy and menopause
Major surgery
Medications
Endocrine conditions that affect thyroid function
Systemic diseases like lupus
Genetics
Female Pattern Baldness
Female pattern baldness, known as Alopecia Areata, is an autoimmune disorder which affects over 30 million women in the United States alone. Women with this condition are genetically oversensitive to the hormone dihydrotestosterone (DHT), causing a pervasive thinning of the hair follicles resulting in a smaller hair shaft and consequently thinner hair. Eventually this can lead to a complete cessation of follicle production, which is typically concentrated at the crown of the head. In addition to genetics, the condition can be exacerbated by aging and menopause. For women suffering from female pattern baldness, receding hairlines are rare.