Generally the reason for hair-loss among men is genetic hormonal, whereas among women the reasons are manifold, such as, more/less activity by the thyroid gland, medicines, stress and tension, operations, post-natal, cessation of pill-taking, over pre-occupation with hair and pulling it into a pony-tail , smoothing of hair, lack of iron, vegetarianism, severe diets etc.
One has to differentiate between severe hair-loss and chronic hair-loss, as well as the difference between hair-loss and thinning hair. The women who suffer from hair thinning without hair-loss are treated in a specific way, while women who suffer from hair-loss and thinning are treated first for the loss and thereafter for the thinning. This is why it is so important for the dermatologist to examine and diagnose the cause and prescribe the appropriate treatment in each and every case.