There are many causes of hair loss, pathological ones such as baldness, androgenetic alopecia, immunosuppressive alopecia (e.g. tumor and radiotherapy patients), and physiological ones such as resting hair loss. Generally, there are two types of hair loss that occur in a short period of time. One is baldness, commonly known as “ghost shaving”. It can occur at any age. It is often related to psycho-neurological factors, and the balding area is initially the size of a nickel coin, and generally recovers in 3-6 months after treatment. The second is resting hair loss, affected by a variety of factors, such as psychoneurological factors, endocrine diseases, drugs, etc. It will not fall out, and will recover on its own after removing the triggers. First of all, it is necessary to determine what kind of hair loss is caused by what kind of cause, and then adjust and treat the cause. Male pattern baldness, also known as androgenic baldness. There is a certain degree of heredity. Hair loss often starts in the twenties. Without effective treatment, the possibility of losing it and growing it back is slim. If it is early, take oral finasteride (Bofarzil) at 1 mg per tablet, one tablet per day. The effect will appear after 3-6 months. If the hair loss is already “shedding”, or if the hair loss is basically in a stable state, then autologous hair transplantation can be performed. The technique is well established and the results are quite good! Autologous hair transplantation is to take out the hair follicles from your own occipital area, divide them into small handfuls, and then plant them in the hair loss area like a rice plant. The possibility of autologous hair transplantation depends on two factors: 1, whether there is still progressive hair loss; if there is still hair loss, it is not suitable for hair transplantation. Because the original hair growing on the top of the head still keeps falling off, after a few years, the cosmetic effect of hair transplantation will be greatly reduced! 2, whether the existing hair is enough, that is, whether the hair supply area is sufficient. If the baldness has been stabilized and the hair supply area is sufficient, then autologous hair transplantation can be performed. Of course, there is a way to save yourself the trouble: wear a wig! Androgenetic baldness, which is common in men, can also occur in women, but the pattern of baldness is different from that of men. The main manifestation is the gradual thinning of the hair on the top of the head, but it is unlikely to be as bald as in men! You can use topical minoxidil solution. An oral contraceptive, Daing 35, will help.