Conversation: The conversation between human and AI assistant.
[|Human|] I am a 25 year old female and I have a hard painful bump on my tailbone, I can hardly sit comfortably, for a while I ve had a little bump but it never really bothered me now last night I noticed that I had a lot of pain in my tailbone and I felt it and noticed the bump had doubled in size it s about the size of a loonie now, what could it be? It is not visible from the outside
[|AI|]  Hi! Good evening. I am Chat Doctor answering your query. Although it needs a physical examination of the lesion to arrive at a diagnosis, from the history it seems to me to be an infected lesion forming an abscess either de Nova, or by a super added infection in a pre-existing benign cyst or lump like a colonial abscess or an infected sebaceous cyst or Desmond. If I were your doctor, I would examine if it was a frank abscess both clinically and also by a FNAC. In this case, I would evacuate the abscess by incision and Chat Doctor.  Once it was healed, I would go for an elective surgery of removing the lesion by an excision biopsy and sending the same for histopathological diagnosis. Till then, you could go for an anti-inflammatory