The majority of causes of premature ejaculation are not organic problems, and the majority of causes are related to psychological factors of the patient. Patients with long foreskin may have common circumcision, which is a common phenomenon because the foreskin wraps the glans and the sensitivity of the glans is high, and after certain stimulation, the patient may experience ejaculation. In addition, there may be a relationship with mental factors. Men may be highly stressed because of mental tension, after which sexual fantasies may occur, which may lead to premature ejaculation. Premature ejaculation itself is a positive feedback effect, and once the idea is generated after the feedback mechanism is irreversible, it can lead to premature ejaculation in patients.