Hi, I'm getting pretty worried, however I have a doctors appointment on monday. Yesterday I noticed what could be a lump on my right side of the scrotum. It's inside, and seems to be connected and attached to the "wall" of the scrotum. It could look like a zit, but as said, it's on the inside, and I'm too afraid of popping it. I took a picture of it, even though it isn't the nicest thing to show. Can anyone tell me what this could be? I haven't had sex with my girlfriend for a month (long distance relationship), and the only she had sex with before that was with a virgin as well, so there can't be any sexually transmitted diceases (at least not sexually transmitted). It only hurts when pressed on, or squeezed on, and it's not attached to either of my testicles, as I can "grab" it from the inside, as in, I can touch all the way around it without it hurting. It pretty much came from one day to the other. As said, I've attached a picture of it, so if anyone could help me calm down a bit, it'd be great. Thanks.