What does testicular cancer feel like?

A lump: Usually rough-surfaced, seldom very painful, sometimes just an enlarges testis if the cancer is inside. Check yourself when you feel like it, and at least once a month with some serious-minded attention to what's there. If you haven't yet discovered your epididymis, you will and it's not cancer. Any new mass should get seen by your physician.

Often, painless mass: The most common symptom of testis cancer is a mass in the testicle that is usually non-tender. Due to the low incidence and high cure rate for testicular cancer there is no standardized screening regimen for this disease. I would recommend that you receive an annual testicular exam by your physician, and of course see your doctor if you notice anything different yourself.