My husband has a mass under his testicles that he says is starting to give him pain. it has grown in size over the past few mnths. what could it be? at first i though it was a cysts but its hard when u touch it and it doesnt look infected or swollen

Infection? Tumor?: The most common causes of tesicular mass are hydrocele (a kind of cyst) and varicocele (a tangled mass of blood vessels). Less common causes are testicular cancer and certain infections. Hardness, without tenderness, goes along with cancer and some infections, e.g. tuberculosis and fungal infections. It's time for your husband to stop screwing around and see a doctor about this. Good luck to him.

Needs evaluation: For any mass like this, it absolutely needs proper evaluation. I hate to think of testicular cancer as the cause for this hard lump in the scrotum, but is must be checked by a doctor. There are other things it could be such as a collection of veins (varicocele) or spermatocele, but I would not waste any more time. Call the doctor today and try to be seen. He may need a urologist to properly check.