<s>[INST] I have a lump on my right buttock.  It is sore when I sit or in certain positions.  Sometimes it is very painful and sore, other times not so much.  It is under the skin.  It is near the anus.  I went to the ER, referred me to a general surgeon, met with the PA at the office.  Told me that it looked like inflamed tissue.  Seems to get worse, then a little better, then worse again.  Should I be worried about the diagnosis?  Could this possibly be something else? [/INST] Hello,Thank you for using healthcaremagic.I read your question and understood your concern.I could be an infection of the root hear , or pilonidal cyst , so you need to see the surgeon for proper treatment.Dr. Selmani </s>