What is the reason for always losing hair, to consider the following factors: First, seborrheic alopecia: often with late at night, diet spicy, greasy too much to have a relationship, usually occurring in the young people, the work pressure, the pace of life is relatively fast, so seborrheic alopecia to pay attention to rest, a light diet. Second, androgenic alopecia, also known as male pattern baldness, is often due to genetic factors, and irregular lifestyle also has a certain relationship. Third, to consider internal diseases, such as hypothyroidism and other endocrine metabolic diseases, need to be in the specialist clinic for laboratory tests, differential diagnosis. Fourth, in pregnancy or late pregnancy will be with the hormone level imbalance hair loss, need to adjust the hormone level.