Overview Men between the ages of 15 and 40 are most likely to get testicular cancer, but it can occur in males of any age, including infants and older men. Understanding Your Diagnosis Symptoms of testicular cancer are similar to other conditions, so your doctor will want to order tests to rule these out before making a diagnosis. Deciding on Treatment Your treatment plan depends on the extent of the disease. You may need surgery, radiation, chemotherapy, or a combination of these. Your doctor will determine the best treatment for you. Managing Side Effects Side effects are common during cancer treatment and vary from person to person. Your health care team will work to ease any side effects that you experience.