Sometimes testicular cancer comes back (relapses) after treatment. It can still usually be cured.
The risk of the cancer coming back depends on its type and stage. It ranges from 13 in 100 (13%) to 1 in 2 (50%).
If the cancer does come back, it will most likely be within 2 years of finishing your treatment. Fewer than 1 in 20 relapses happen later than that.
You usually have more treatment if your cancer comes back.
Even testicular cancers that come back can usually be cured. If your cancer comes back after treatment you will probably have more chemotherapy or you might have radiotherapy to the lymph nodes in your abdomen.
You may have surgery to remove a cancer that has spread to the lung (secondary lung cancer) or lymph nodes.