Radiation therapy targets high-energy rays at the cancer to stop it growing. Seminomas are highly sensitive to radiation, but nonseminomas are not. There are side effects linked to treatment. Many men worry that losing one testicle will affect their ability to have sexual intercourse or make them sterile. But a man with one healthy testicle can still have a normal erection and produce sperm.
Men can also have an artificial testicle, called a prosthesis, placed in the scrotum.
Surgery to remove the lymph nodes does not change a man's ability to have an erection or an orgasm, but the operation can cause sterility because it may interfere with the nerves involved in ejaculation. The BBC is not responsible for the content of external internet sites.