Conversation: The conversation between human and AI assistant.
[|Human|] Ive had a lump for right on top of the butt crack for a while already and its internal . When you look you cant see anything no red no swelling nothing comes out but i can feel it. Or when i press on it a little it hurts just a little or when i sit down ir when trying to do a sit up. My sister had surgery for a pilonidal cyst but mine does bot look like gers hers was external and was visible. Mine went away for a while and i didnt really feel it or pain either and now i feel it again what can this be?
[|AI|]  Hello! Thank you for the query. From your description colonial cyst is what seems most possible. Lump in this location in most cases is caused by such cyst. It appears due to ingrown hair which irritates the tissues. Such cyst can from time ti time get infected and turn into an abscess. Some persons can have only tiny dots visible in the butt crack. Others will have swollen lump. I suggest you to show it to a general surgeon. Hope this will help. Regards.