Having a foreskin that is not cut usually affects your sex life. Phimosis refers to the narrow opening of the foreskin, which cannot be turned up to reveal the head of the penis. Its clinical manifestations are the narrow opening of the foreskin, the foreskin can not be upturned, the head of the penis is difficult to expose, etc., will also be accompanied by infections, urinary difficulties, sexual dysfunction and so on. The phimosis affects sex life in the following ways: 1. The opening of the foreskin is too narrow, which will lead to pain during sexual friction. 2. Patients with prepuce are usually accompanied by a short tether, which may cause pain and hemorrhage when the tether is broken during sex. 3. If the opening of the foreskin is loose, the foreskin will be turned up during sex and stuck at the coronary groove. This may cause edema, bruising and even necrosis of the head of the penis, thus greatly affecting sexual life. 4. The foreskin cannot be turned out and the head of the penis is not cleaned properly, which can harbor a lot of bacteria leading to infection, thus also affecting sex life. To summarize, prepuce may affect sex life, please go to the hospital in time for examination and treatment.