You have a painless lump in your testicle
One of the most common symptoms of testicular cancer is a pain-free mass in the testicle, according to Joseph Harryhill, MD, an assistant clinical professor of urology at the University of Pennsylvania. “It is important for men to realize that a tumor often does not cause any significant discomfort—thus the importance of regular testicular self examination,” Harryhill said. Many times men will not notice the mass until they receive an unrelated injury, bringing the tumor to their attention. Moral of the story: Make sure you check yourself regularly for lumps and bumps.