Why Does The Shaft Of My Penis Have Bubbles In It Bleeding Lump In Pubic Region?

Bleeding lump in pubic region? - why does the shaft of my penis have bubbles in it

In recent weeks, I have a knot near the shaft of my penis had, feels almost like a soap bubble calcium (if that's what) are they referred to as I in my leg. Im not sure if it is scratched, or if it was started by himself, but he bleeds like a button is open when scratched, can a little more.any ideas, what could this be?