The head of the penis can not be turned out refers to the phimosis, the phimosis refers to the narrow opening of the foreskin upturning difficulties, generally will not affect fertility. The normal fertility of men should be satisfied with normal sexual function and normal semen, the prepuce is only the narrow opening of the foreskin, the head of the penis is difficult to reveal, generally does not affect fertility, the prepuce can be treated through the expansion of the foreskin opening, circumcision and other ways of treatment, the prognosis is generally better, and will not affect the sex life. Daily attention should be paid to the maintenance of local penile hygiene, to avoid the occurrence of penile head circumcision, circumcision inlay and other complications, regular post-operative review, pay attention to the changes in the condition of the body type of obese patients should also be appropriate exercise, dietary control.