Conversation: The conversation between human and AI assistant.
[|Human|] The end of my tail bone has a large lump (a little smaller than a golf ball). It veers to the right and it aches all the time. I cannot sit on any hard surfaces and always have to use a pillow. My husband thinks it had gotten bigger since we first noticed about a year ago. I haven t injured it at all and am having no bathroom issues. What could explain this?
[|AI|]  Hello and welcome to Chat Doctor, A lump at end of tail bone required imaging studies of the backbone. Imaging studies will show the origin of the lump whether the lump is connected to the backbone or not. In case the lump is not arising and is a soft tissue swelling, an aspiration cytology of the lump is required. Aspiration cytology the cells are aspirated with a needle, cells are spread on a glass slide and stained with appropriate stain. The stains are studied microscopically to know the nature and character of the lesion. The management of the lesion can be planned after clinical assessment and relevant investigations. Thanks and take care Chat Doctor.