Final answer:
Testicular cancer can be detected through a physical exam and diagnostic tests such as ultrasound and blood tests. Symptoms include a lump or swelling in the testes, pain, or shortness of breath if the cancer has spread.
Step-by-step explanation:
Testicular cancer can be detected through a physical exam and diagnostic tests. One of the main signs of testicular cancer is a lump or swelling in one of the testes. Other symptoms may include pain, heaviness in the scrotum, or shortness of breath if the cancer has spread. Further diagnostic tests such as ultrasound, blood tests, and CT scans may be done to fully assess the presence and extent of testicular cancer.