Suddenly a small piece of baldness on the top of the head is usually a manifestation of baldness. Baldness is a self-healing disease, the cause of which may be related to genetics, endocrine disorders, mental and emotional stress disorders, etc. Most patients with baldness can heal naturally within 6-12 months. If the patient’s condition has not healed for a long time, he can also try to use the following ways to promote hair growth: 1. Local medication: After diagnosis by a doctor, the patient can apply topical minoxidil application etc. to promote improvement of local blood circulation, or local injection of glucocorticoids such as prednisolone acetate injection and compound betamethasone injection to reduce inflammation around the hair follicle and promote hair growth; 2. Systemic medication. Drugs such as cystine, calcium pantothenate, and vitamin B can promote hair growth. Patients with more serious hair loss symptoms can be combined with compound glycyrrhetinic acid tablets, white peony total glycoside capsules, blood nourishing and hair growth capsules, and he shou wu to strengthen the efficacy; 3. Physical therapy: Patients with baldness who do not achieve good results by drug treatment can use physical therapy to relieve symptoms. At present, physiotherapy such as long-wave ultraviolet light, photodynamic therapy and excimer laser are effective in treating baldness. Most patients with baldness can heal themselves, but it is difficult to eradicate and therefore may reoccur. You should strengthen your hair care in your daily life, try not to dye or bleach your hair, and not to use irritating hair care products. Pay attention to maintaining a regular work and rest schedule, and relieve bad emotions in a timely manner. For patients with extensive baldness or total baldness, you can also wear a wig to reduce the psychological burden.