Testicular cancer lumps often feel hard, though painless, according to Planned Parenthood. Lumps may be as small as a pea. In addition, the testicle may be swollen and feel thicker compared to the uninvolved side.
Other symptoms of testicular cancer include pain in the lower back, abdomen or groin areas unrelated to acute injury, according to MedicineNet. There may also be swelling of the scrotum with fluid build-up. There may also be a sense of heaviness in the scrotum or bloating in the lower abdomen, states Planned Parenthood. Some men have no symptoms and do not feel sick at the time of diagnosis.
A testicular self exam helps a man become familiar with his body so that testicular changes and obvious lumps can be identified and reported to a doctor, according to MedlinePlus. The test is best performed standing, ideally after a shower when the scrotum is relaxed. The testicle is firmly but gently felt across its entire surface, looking for any lumps, nodules, thickening or swelling. The same exam is repeated on the other side.
Testicular cancer accounts for only 1 percent of all cancers, according to MedlinePlus. However, it is the number one cause of cancer in men ages 15 to 39. It is highly curable when caught early.