Cystine tablets are a kind of amino acid drug containing sulfur, which can promote the redox function of cells and play a certain role in hair growth. However, for more serious pathological hair loss, the effect of cystine tablets will not be too obvious. For nutritional alopecia, oral cystine, calcium pantothenate and B vitamins can be taken to help relieve hair loss. Other sedative treatments may be given to patients with mental stress, anxiety, and insomnia. Those with extensive and severe hair loss need to first look for the cause of hair loss and rule out hair loss due to medical system diseases. Such as pernicious anemia, abnormal thyroid function, abnormal liver and kidney function, trace element deficiency, etc. It is recommended to improve the relevant examination and treat the primary disease first. If there is no primary disease and it is purely androgenic alopecia, topical medication or hair transplantation can be performed. At the same time, pay attention to adjusting emotions, avoiding tension and anxiety, ensuring rest and avoiding strain.