Prevention of hair loss does not need to take drugs, the current drugs are only used for the treatment of hair loss, the way to prevent hair loss is mainly life care. In daily life to develop good habits, eat more protein-rich foods to promote hair growth, and also need to avoid late nights and excessive fatigue, work and study, relaxation, work and rest, appropriate exercise, accelerate blood circulation, for the prevention of hair loss has a more positive significance. If the patient has already appeared in the case of hair loss, you need to go to the hospital for examination and diagnosis, clear cause of hair loss of specific reasons, if necessary, you can choose to take finasteride tablets under the guidance of a professional doctor to alleviate the improvement of drugs, but need to pay attention to follow the doctor’s instructions, to avoid blind use of drugs caused by adverse reactions, resulting in discomfort.