In recent days, in addition to the news of a small hedgehog in London zoo because of the stress of the body thorns fall off a large area, there is also a news report about a female university student pulling hair every day, stress body thorns fall off we can understand, but many patients will wonder, there are really clinical cases of their own hair pulling? Does it not hurt? What is the reason? There are really such clinical cases. Does it not hurt? What is the reason? Even if the patient feels that it doesn’t hurt, the long and short uneven hair doesn’t look good, and young boys and girls are the most beautiful, so why would they pluck their own hair every day despite the ugliness? The report said that the child’s parents are strict about this matter, and from the analysis of the cases I saw clinically also agree that the cause of stress. For most of these patients, if a person can’t care about the pain of hair pulling or the unattractiveness of uneven hair, the pain inside must go beyond the pain and unattractiveness. I think it has something to do with the parents being too strict. Parents may ask their children to do everything in life perfectly and quickly, to do every math problem and write every essay perfectly and quickly, but the children themselves are still developing and growing because they are still young, and besides, the children have different talents and different degrees of growth. This can easily lead to conflicts between the child and the parents, in which the child is at an absolute disadvantage, he/she cannot win and cannot escape, so he/she usually just uses hair pulling to relieve his/her stress.