Boys ejaculation is faster belong to premature ejaculation, common causes are mainly divided into physical factors such as tiredness, can be seen in psychological factors such as mental tension, can also be seen in pathological factors, such as prostatitis, seminal vesiculitis, circumcision, penile, etc.. 1. Physiological factors: the more common are tired and so on, more in after enough rest after the improvement. 2. Psychological factors: mainly related to mental factors, such as excessive tension in the patient’s sexual life, especially the first sexual life of men; the existence of anxiety, depression, such as the existence of their own sexual function is not confident, husband and wife do not have a harmonious relationship, etc.; a long time to watch pornographic videos, pictures, as well as those who are tired. 3. Pathological factors: the more common in the clinic are patients with circumcision, phimosis, the glans is more sensitive, easier to ejaculate; prostatitis, seminal vesiculitis, and urethritis patients, can also appear to ejaculate faster performance. It is recommended that patients go to the hospital to improve the auxiliary examination, in order to clarify the cause of the disease, the professional physician for the cause of the corresponding treatment measures.