Causes of hair loss in boys are mainly seen in androgenetic alopecia and baldness, in the treatment of vasodilating drugs, drugs to regulate androgenic hormones and glucocorticoid therapy to promote hair follicles, and secondly, we must maintain a good state of mind. 1. Androgenic alopecia: (1) external vasodilating drugs: in the local external use of some vasodilating drugs, can improve the local blood supply, for the growth of hair to provide the required nutrients, which will help promote hair follicles, the more commonly used drugs are minoxidil tincture. (2) Oral regulation of androgenic drugs: oral finasteride tablets and other drugs to regulate androgenic hormones, inhibit the conversion of testosterone to androgenic dihydrotestosterone, reduce the concentration of dihydrotestosterone in the serum and tissues, so as to achieve the improvement of hair follicle function, reversing the role of hair loss. 2. Patchy baldness: (1) Local administration of glucocorticosteroids: such as halometasone ointment and haxinide solution, etc. Glucocorticosteroids can reduce perifollicular inflammation and help improve hair loss. (2) Topical vasodilating drugs: local topical treatment with some vasodilating drugs can improve the local blood supply and promote the hair to enter the anagen phase from the resting phase, thus accelerating the regeneration of hair, the more commonly used drugs are minoxidil tincture. (3) take sedative drugs: for the existence of mental tension and anxiety patients, can be given appropriate sedative treatment, such as diazepam and so on. Try to keep a relaxed state of mind during the treatment process and avoid excessive stress. Before choosing medication, be sure to follow the doctor’s instructions.