Hard lump on top of my right testicular.turn from a tiny pepper seed to a pea size from 2 years. it is in or under the epididymis. near testi, no pain?

Doctor visit: All lumps on the testicle are at high risk for malignancy, while most lesions in the scrotum but not attached to the testicle are benign. I recommend a visit with your doctor for an evaluation. The concern is whether this lump is cancer.

Head of epididymis: Or cyst of epididymis. Suggest you consult urologist ; get scrotal ultrasound. Better than mukltiple questions on healthtap.