Eyebrows become long, can be considered physiological factors, such as androgen secretion, heredity, etc., may also be pathological factors, hirsutism, etc.. Specific analysis is as follows: 1. Physiological factors: Exuberant secretion of androgen and hereditary factors, etc. can appear in the phenomenon of eyebrow hair lengthening. (1) Androgen secretion: the active degree of the hair follicle is affected by androgen, when the body androgen secretion is strong, its hair growth rate will naturally accelerate, the growth of eyebrows will also accelerate. (2) Hereditary factors: from the perspective of genetic analysis, the length and density of eyebrows and eyelashes are dominant, if one of the parents has long eyebrows and eyelashes, the hereditary rate of the child will increase significantly. 2. Pathological factors: common such as hirsutism. Hirsutism refers to the excessive growth or abnormal distribution of hair, which usually does not affect the function of the human body. It can be categorized into female hirsutism and other types of hirsutism. The cause of the former is complex and may be related to androgens; the cause of the latter is not clear, and may be related to heredity, hormone secretion, drugs and so on. The symptoms of long eyebrows can occur. It is recommended that patients with elongated eyebrows should consult a doctor in time to clarify the cause of the disease, and do targeted treatment. During the period, you should avoid plucking the long eyebrows by yourself to avoid bacterial infection, and at the same time, observe the growth of hair, adjust your mood, and actively cooperate with the treatment.