new member here, i have been suffering with "for lack of better words" butt pain since 2013. It is mainly on the sit bones. My urologist, who treats me for IC, told me this was caused from the pudendal nerve. He was actually able to do an internal exam and press on the location, which cause the exact pain that if feel. Unfortunately, there is no one in my area who specializes in the pudendal nerve. So basically I don't know if it is entrapment or something else. I do know the pain has intensified and now includes spasms in the anus area.