The cause of a thin beard may be due to low androgen production, heredity and damage to the hair follicles in the chin area. It is recommended to eat a nutritious diet, exercise moderately and regularly, and participate in physical activities. Eat more nutritious food, such as fruits and vegetables, animal liver and so on. 1. Androgen secretion may be due to the female or younger and part of the male population, the body androgen is relatively small, will directly affect the growth of the beard, produce the phenomenon of beard less. 2. Heredity: if the family, such as the father’s generation of people do not grow a beard, there may be a certain degree of heredity, by the influence of genetic factors, so the offspring of the population will not grow a beard phenomenon. 3. Damaged hair follicles in the chin area: In the chin area where the beard grows, if the local hair follicles are damaged or the oil secretion is increased, resulting in the blockage of the hair follicles, the phenomenon of not growing a beard will occur. If the patient wants to improve the situation of thin beard, you can go to the hospital for consultation, the doctor’s help to use drugs to improve the situation of thin beard.