I just recently noticed that I have a one spot on each of my male pigs. It is just a tiny spot that looks like something is coming out, almost like a tit. I am unsure what it is. I touched it to see if it caused any discomfort but it didn't seem to. Here is a picture of it. I have no idea what it is so any advice would help. If it's due to their cage being unsanitary it has only been temporary due to me literally just graduating and work in between. I try not to neglect them