The male and female reproductive systems work together to produce offspring. The male system includes the testes, which produce sperm and testosterone. Sperm mature and are stored in the epididymis before being transported through the vas deferens. During ejaculation, secretions from glands add volume and nutrients to the sperm. Regular self-exams are important for early detection of issues like testicular cancer. The female system includes ovaries that release eggs and a uterus that nourishes a fetus. During menstruation, the uterine lining is shed if no pregnancy occurs. Good hygiene helps prevent infections. Early detection of issues supports treatment of conditions like cervical or ovarian cancers.