Hello, I ve recently noticed a small hard lump inside my penis, at the base, in the centre. It s much more prominent when erect, still can feel it if I press hard when flaccid. It s not directly under the skin, it s on the penis under the skin. It s not not painful but can be moved slightly and makes a clicking sound/feeling like it was a small switch. I have hpv which includes hpv 6 or 11 ~ genital warts.