This is normal perianal hair, a physiological phenomenon, so don't worry. If you feel inconvenient, you can have laser cosmetic surgery and snow skin cold contact laser hair removal, which has the advantages of safety, painless and permanent hair removal. Most of the long hair in the human body is hereditary and related to the local climate. Generally speaking, people's hair will be less or thinner in hot weather, but it is the opposite in cold weather, but this is not absolute. In addition, long pubic hair has a great relationship with human secretion. When hormones are secreted more, the human body will naturally grow hair. Generally speaking, it is only a matter of how much adults have long hair.