question: i had a hemerrhoidectomy about 5 months ago , since then i've had a lump develop on my testicle . i had it checked it is not cancer it is actually starting to go away now . every time i would get a nut the lump on the underside of my testicle would get a little bigger . i noticed over time the feeling at the penis head was like diminishing . this morning i had sex with my wife and when i got a nut there was no arrousal feeling at ejackulation .