Circumcision has the potential to reduce glans sensitivity and improve premature ejaculation; however, it may also lead to increased sensitivity. Circumcision is mainly for patients with overgrown foreskin, prepuce or incarcerated foreskin. In these cases, the foreskin wraps around the glans and the coronal sulcus, which can easily induce the appearance of increased glans sensitivity, and the patient may suffer from premature ejaculation. After diagnosing the condition, the excessively long foreskin tissue can be removed through circumcision under the guidance of the doctor, thus revealing the glans and the coronal sulcus. As the glans and the coronal sulcus are exposed after the operation, it is possible to reduce the sensitivity of the glans and improve the situation of premature ejaculation. However, there is also a possibility that the long-wrapped glans will be exposed after the operation, leading to increased sensitivity. In conclusion, expecting circumcision to improve premature ejaculation is not something to be sought. In addition, premature ejaculation has more reasons, in addition to the glans, foreskin factors, and physical condition, mental condition, sexual knowledge reserve, husband and wife relationship, prostatitis and other lesions have a certain relationship. It is recommended that patients go to the Genitourinary Surgery Department, combined with the patient’s specific situation to regulate the treatment.