Testicular cancer is a rare disease in men caused by abnormal growth of cells of the testicle.
There are several types of testicular cancer. The most common are seminoma and teratoma. Seminomas are made up of a single type of cell, whereas teratomas consist of more than one type of testicular cell. Occasionally, the growth can consist of seminoma and teratoma. Cancer of the testicles most often affects men aged between 15 and 35 years.