Testicular cancer occurs in the testes – a part of the male reproductive system – and is among the most common types of cancer found in young American males. It also has one of the highest cure rates of all cancers, 95%. If the cancer is confined to the testicle, the 5-year survival rate is 99%. Symptoms of this condition include lumps or growths on the testes, a painful groin or scrotum, and a feeling of heaviness in the scrotum. Treatment may include surgery to remove the growth(s), radiation and chemotherapy.