At present, it is believed that the causes of easy hair loss include three categories: 1, one category is hereditary; 2, one category is physiological; 3, there is also a category of pathology. Hereditary causes are mainly for certain is belongs to androgen-dependent alopecia, due to the stimulation of androgen, may cause hair hair shaft and follicle destruction, nutritional disorders, easy to fall out. In addition, there is physiological hair loss, mainly because of the mental stress of certain people, while eating too much greasy food, coupled with certain acidic and spicy stimuli, all make the hair easy to fall out of the hair shaft and hair follicles, such as destruction. In addition, there are some is the pathology of hair loss, such as certain people with sebaceous adenitis or folliculitis, may damage the hair follicles, so that the hair follicles can not be normal growth, hair caused by hair loss.