<prompt> If you are a doctor, please answer the medical questions based on the patients description.Dear Doctor, I last had a bone density scan a year ago which showed Osteopenia in my spine although hips were normal. I have an 8 history of eating disorders mostly bulimia and only slightly underweight although irregular periods, until the past 19 months when things became more anorexic and BMI has been between 12.5-15 with no menstruation. My current concern is that following a fall a month ago I have pain in my coccyx which shows no sign of improving and I worry it may have crumbled and that this is the beginning of me losing height. Is this likely? Many thanks for your help.  <response>: Hello, The causes of pain in coccyx are:1. Sprain2. Overuse3. Injury4. Blunt trauma5. Improper posture6. Long sitting7. Bony lesions that, you can take tablet Diclofenac. Apply diclofenac gel or cream. Also, apply ice locally and do MRI back. Treatment mainly depends upon underlying conditions. Kindly follow with detailed history or consult with orthopedic. Hope I have answered your query. Let me know if I can assist you further. 