Hair loss prevention methods vary from person to person, including avoiding triggers, the use of drugs, reasonable care and so on, there is no “best”. 1. Avoiding triggers: For patients with hair loss, the first thing to do is to clarify the cause of the disease and avoid triggers. If hair loss is caused by weight loss, try to stop losing weight; if hair loss is caused by too much mental stress, do psychological relief. 2. Use of drugs: some vitamins that are valuable for hair growth, such as vitamin B1, B2, B6, B12, folic acid, etc. can be taken. 3. Reasonable care: patients can take reasonable care in daily life, wash their hair in time, use some anti-hair loss shampoos and cooperate with massage to improve the blood supply of the scalp and give the hair follicles enough nutrients. After shampooing, you can use suitable conditioner, but do not apply it directly to the scalp.