Uro-oncology is the study and treatment of cancers affecting the urinary system, including the kidneys, bladder, prostate, and testicles. Symptoms can include blood in the urine, increased urinary frequency, pain during urination, and a feeling of incomplete emptying of the bladder. Diagnosis and staging are important steps to determine treatment, which may include surgery, radiation, chemotherapy, or immunotherapy depending on the cancer type and stage.