It maybe one or not. There was a small lump about 2 inches below my head on the right side of the shaft on top. The lump lasted for around 5 minutes after pumping today. I noticed that it was right over a blue vein the big one. Now the lump is gone like i said it lasted oly 5 minutes. But where the little lump was that part of the vein looks darker than the rest. The size is that of a matchead there is no soreness no pain nothing. Just curious as if I should continue to pump or stay away from it for a few days. Also is there any site on the net that has pictures of thrombosed veins of the penis. I did a search on google but did not find any good pictures at all actually nothing.