Testicular cancer forms in a man's testicles, the two egg-shaped glands that produce sperm and testosterone. Testicular cancer mainly affects young men between the ages of 20 and 39. Testicular cancer is one of the most curable forms of cancer.
The testicles have several kinds of cells, which may give rise to different types of cancer. It is important to identify the type of cancer which is present as this will determine the type of treatment.
In the vast majority of cases of testicular cancer, the man has a lump on a testicle or notices that the testicle is swollen. Testicular cancer is usually painless until it is at a more advanced stage.
When diagnosed early, testicular cancer has a high cure rate. Possible symptoms of testicular cancer include:

Hard lump on the testicle

Swelling in the testicle

Pain in a testicle or in the scrotum

Enlargement of a testicle or change in the way it feels

Heavy feeling in the groin

Dull ache in the lower abdomen, back or groin

A sudden collection of fluid in the scrotum

Shortness of breath

Coughing
Testicular Cancer Resources
Diagnostic Tools
Treatment
Sentara Cancer Network
This information for this section was compiled with help from the following Web sites. Please see them for more information on bladder cancer.
Journal of the American Medical Association
American Cancer Society
National Cancer Institute