Some people with prepuce may experience premature ejaculation, which may also be caused by other reasons such as mental and psychological factors, and it is recommended that the relevant people should seek timely diagnosis and treatment accordingly. The foreskin is too long and the opening of the foreskin is too narrow to expose the glans, including congenital foreskin and secondary foreskin, the latter is commonly caused by local infections or inflammation that leads to scarring of the foreskin. The main manifestations of phimosis can be obstacles to the reversal of the foreskin, local inflammation, pain, urination abnormalities, foreskin incarceration, etc. Some people can also have sexual dysfunction due to phimosis. Causes of sexual dysfunction due to prepuce include loss of libido and erection difficulty due to localized pain during sex; or premature ejaculation, delayed ejaculation, and non-ejaculation due to obstacles in revealing the head of the penis and tight foreskin. For this group of people, there may be an improvement in sexual dysfunction after actively treating the condition of the foreskin after a visit to the doctor. There are many causes of premature ejaculation, which also include mental psychological factors, such as depression, restlessness, etc.; penile changes, such as sensory hypersensitivity, increased sensory excitability, etc.; external genital and prostate diseases, such as phimosis, glans, prostatitis, etc.