A Answers (2)
It's not known what causes testicular cancer. There’s nothing that a man does behaviorally that can cause it. It's probably genetic at some level, but doctors don’t understand the underlying reasons. Indeed, even the reason those with undescended testicles subsequently develop testicular cancer is not completely understood.
Researchers have not yet discovered exactly what causes testicular cancer to develop. Symptoms are caused when cells in your testicles, which normally divide and grow on a regular basis to maintain healthy testicles, go haywire, continuing to produce more cells when your body does not require them. These excess cells clump and form a tumor.
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