Suggest treatment for a painless lump on the penis shaft Hello Doc, i was circumcised about seven years ago,,, there has been a painless lump under the head of my penis all this while, it is not painful bt once in a while itchy. At that time, my mates used to knock their penis heads with some thorns so as to eject some liquid under their penis heads but i did not do the same on mine as it was somewhat painful. I just got concerned about it and wondered if it has any setbacks,,, kindly advise