May be hormonal problems, medical conditions or certain hair styles like that so many causes for hair loss. Be careful of your hair means hair styles or or hairdresser are causes for hair loss. Wash your hair regularly with mild shampoo and be care gentle with your hair. And don't stress because stress also damages all of your body and hair also not exception.iron and protein are most useful to hair grow. So eat these type of foods like eggs, vitamin A etc..