I woke up with pain in the inside of the hole in my penis. I never checked it out. Later on I went to pee, and felt the pain from earlier. Looked inside my penis hole, and there was a black ball.. I put water on it, and tried to pull it out, and it was dried blood. I got to inspecting the hole more and I noticed there was a red blister and I am just curious what is happening. I have not had sex since late July, early August.