It does NOT cause cancer however it can be a precursor to cancer, but not without other contributing factors (genetics, smoking, drugs, EMF radiation exposure, prolonged unhealthy diet
The composition of the stones
is calcium. Think of it like a testicular Gall Stone. The stones usually appear in the epididymal tubes and block the flow of sperm to the vas deferens. However, they can actually occur almost anywhere in the testicle.