Is it possible for a penis to break? If the man is erect and too much pressure is applied on his penis it can break. The penis does not have any bones, it is made of muscles and tissue that fills with blood. This tissue can tear inside the penis so the man cannot keep an erection. If this happens do not be afraid talk to a doctor. A simple surgery can heal the penis but leaving it untreated for long can cause further damage. The injury does not affect testes or sperm so should not cause infertility.
Attribution: Straight Talk Foundation