Hair thinning and thinning hair loss serious may be due to genetic factors, malnutrition, external environment and other factors, can be resolved through medication, strengthen nutrition, change the environment and other ways. 1. Genetic factors: Minoxidil tincture can be applied to the head, oral finasteride tablets for men, oral spironolactone tablets for women, and laser treatment or hair transplantation can be used if necessary. 2. Malnutrition: Balanced diet, strengthen the nutrition, strengthen the body of calcium and iron intake, you can eat more peanuts, sesame seeds, black beans, appropriate intake of fresh vegetables and fruits. 3. External environment: some people in the work of the hair by ultraviolet sun exposure, should do a good job of physical sunscreen, choose sun hat, awning and other tools to protect hair. If the hair is thin and sparse hair loss is serious and continues to be unrelieved, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to choose to use medication or physical therapy.