The back of the head folds more and body obesity, age factors and other reasons, but also does not exclude the local skin lesions related. 1. Obesity: obesity can make the local skin fat accumulation, excessive obesity, can be caused by the back of the head part of the fold increase, can change the diet structure, strengthen the exercise and other control of body weight, weight back to normal, the above symptoms can be improved. 2. Age factor: with the continuous growth of age, the skin will gradually aging state, some people will show the phenomenon of skin laxity, so the back of the head folds can be increased, belong to the natural state of aging, do not need to deal with. 3. Local skin lesions: local skin lesions on the head may lead to skin laxity, which may lead to folds on the back of the head, which need to be diagnosed and treated by the dermatology department. Most of the folds on the back of the head do not need to be treated, but if they are accompanied by other uncomfortable symptoms, it is recommended to consult a doctor in time.