Hi welcome to Health care magic forum.
Thanks for calling H.C.M.Forum.
You had cryptorchidism
when you are a child, and you got operated. It is a congenital condition where the testicle remains in the abdomen, instead of descending into the scrotal sac. you got operated by pulling the testicle down into the scrotum
While doing so there could be a herniation of the intestine or mesentry into the scrotal sac.
So far if threads of the operation are visible , they would have used unabsorbable sutures to close the internal incisions
I advise you to consult a surgeon for diagnosis and treatment.
Wishing for a quick and complete recovery.