16. Lumps in the testicles
90 percent of men with testicular cancer report not feeling pain or discomfort. Nonetheless, it is better to have a doctor check. Swollen testicles should also be brought to your doctor’s attention.
17. Changes in urine
Needing to urinate more often than usual, pain while peeing, needing to go as soon as you finish, and a slow and weak stream may be the cause of bladder cancer.