As a result of modern day treatment most men who develop testicular cancer will be completely cured. This means that life can get back to normal after treatment - and that includes playing sport.
The treatment that a man may need for a testicular cancer varies considerably, depending on the exact type of cancer and whether it has spread to other parts of the body (or whether there is a high risk that it might have spread). This means that treatment can range from just an operation to remove the affected testicle (an orchiectomy) to surgery plus radiotherapy or an orchiectomy followed by quite intensive chemotherapy.
Chemotherapy for testicular cancer, although very successful, is very demanding and can be extremely exhausting. Often men feel tired and easily fatigued for quite a few months after their treatment is finished. For some men, especially those over the age of 40, it could be a year or more before they feel fully back to normal and regain their old stamina.
So for someone whose treatment is just an orchiectomy and nothing else then they could get back to regular exercise and sport within 6 to 8 weeks after their operation but for someone who has chemotherapy as well, it may be a year or even longer before they feel ready to vigorously exercise again.

