Re: Please help - hair is shedding...:(
Also; hypo thyroid may cause hairloss. But why? hormonal.. Even women may have the male baldness pattern nowadays; I see it too often; thinning on the top on females.
"Hormonally induced hair loss takes place when an enzyme starts to convert the hormone testosterone on the scalp to its less useful version, dihydrotestosterone, or DHT. DHT then attacks the hair follicle, and shrinks it, even making it disappear entirely. Hair becomes thinner and finer, and may stop growing entirely. This conversion of testosterone to DHT seems to be sped up in some patients with hyperthyroidism or hypothyroidism, and may be the cause of hair loss that continues for thyroid patients, despite what is considered sufficient thyroid treatment.
Some people actually complain that rapid hair loss is the worst symptom of their thyroid problem - the thinning hair, large amounts of hair falling out in the shower or sink, often accompanied by changes in the hair's texture, making it dry, coarse, or easily tangled. Interestingly, some people have actually written to tell me that their thyroid problem was initially "diagnosed" by a hairdresser, who noticed the change in their hair!"
http://thyroid.about.com/cs/hairloss/a/hairloss.htm