I've been reading about cryptorchidism risk factors and i remember that it said it testicular cancer was one of them. if you had surgery for it before as an infant (one that's retractile), would you still be at increased risk? how much?

Retractile testes are not associated with the same complications as true undescended testes such as increased risk of malignant transformation or subfertility. If you had it fixed at early age, I would assume the testicular cancer risk is not much higher than other men.

Surgery is not done for retractile testicle in infancy but for torsion as infant testicles are very retractile normally which causes no problem. If a cryptorchid testis is repaired in infancy the chances of cancer are 2.75--5 percent