I just woke up today to a little discomfort in my rear-end. I went to shower and noticed that it hurt when I tried to clean it out, hoping that it would just be soreness or something. Unfortunately, I found a white bump that looked like a large pimple on the border between my anus (the hole itself) and the outside. It hurts when I touch it and aches a little when I don't, just like most larger pimples do when they are on my face. I have never had anything like this before and I am not sexually active (so I don't think it can be an STD). Should I go see a doctor or should I wait to see if it goes away? Is it something serious or should I not worry about it? Sorry to take up so much time, but I'm a little anxious and would really appreciate your responses. Thank you!