About 90% of testicular cancers start in germ cells that make sperm. There are two main types of germ cell tumors. The type you have will determine your treatment and prognosis.
Seminomas tend to grow more slowly and respond well to radiation therapy.
The two subtypes of seminomas are: classical (most common) and spermatocytic (more often found in older men).
Nonseminomas tend to occur earlier in life and spread faster. Young men are more likely to have nonseminomas.
There are four tumor types: embryonal carcinoma, yolk sac carcinoma, choriocarcinoma and teratoma. These tumors generally respond better to chemotherapy than radiation therapy.
The best way to prevent testicular cancer is to perform monthly self-exams. Here is an easy, three-step guide to performing a self-exam.