<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have a small, unexplainable bruise on my spine, right wear my bra would be, I have had it for 2 months and pain only on one spine bone were the bruising is. The pain has recently gotten worse. It hurts just to sit back in a chair or in the car. I have had absolutly no injury or trauma.  <response>: Hello! Welcome and thank you for asking on Chat Doctor! Regarding your concern, I would explain that your symptoms could be related to a chronic infection. A tumor can not be excluded either. Coming to this point, I would recommend consulting with your attending doctor for a careful physical check up and some tests: - a spine CT scan to exclude a possible tumor-complete blood count, PCR, sedimentation rate for inflammationOther tests may be needed if suspicions of a tumor are raised. Biopsy would be necessary in such case. Hope to have been helpful! Best wishes, 