What causes testicular cancer?

Abnormal cells. Abnormal cells in testis multiply and become tumors. They are relatively uncommon tumors. But all men should prectice scrotal self examination on a regular basis (say x1/month), ideally in the shower. Seek medical help if you feel a hard lump, or one testicle starts to grow much larger than ihe other one. Intraabdominal undescended testes are at cancer risk even after correction. Prognosis is good.
Not known. We do not have a clear understanding of what causes testicular cancer. We do know that, in general, it is a disease of younger men (generally age 30 or less).

Related Questions

What are the causes of testicular cancer?

Dumb luck. Apart from cryptorchidism, which greatly increases the risk, these seem to strike at random. There are two studies you may see that to me reek of bad science. In one, the men who had testicular cancer and wonder why were more willing to confess to having tried cannabis. In the other, men who'd lost a testis exaggerated their past athletic achievements. No, fitness doesn't cause cancer. Read more...
Testicular cancer. The highest rate of testicular cancer occurs in white men in northern Europe. some genetic or environmental factor may be involved.Undescended testicles (testes), HIV or AIDS ,Klinefelter's syndrome increases the risk. Infertile men with an abnormal sperm count have a slight increased risk. Read more...

Need expert help here. What are causes/symptoms of testicular cancer?

A mass. Almost without exception, testicular cancer announces itself as a mass in the testis. Usually it's palpable as a lump on or within the testis; it may be deep and the testis simply larger. Read more...

What to do if I was just wondering how testicular cancer is caused, and what are signs of it?

Mass is common. Testicular cancer is usually detected by a mass or firmness in the testicle (scrotum). They can be quite small, but any abnormality in size or shape of the testicle should be evaluated. Ultrasound and blood tests for specific hormones (plap, hcg, alpha-fetoprotein, etc) can be used to detected if there is systemic disease. Read more...
Testicular mass. Usually painless. If this is not a cryptorchid testis and the person is not an intersex, it's basically dumb luck. There was a claim on an old retrospective study that physical fitness contributes to risk, but i believe this simply men exaggerating their achievements after losing a testis. Early puberty and lack of exercise are listed as possible risk factors. Read more...