what causes pain in organs
Pain arising from other organs may be felt in the back. This is called referred pain. Many intra-abdominal disorders-such as appendicitis, aneurysms, kidney diseases, bladder infections, pelvic infections and ovarian disorders, amongst others-can cause pain referred to the back. Other skeletal causes of lower back pain include osteomyelitis, sacroiliitis, and osteoporosis vertebral fractures. 2  This pain is often worse at night and when sitting or standing for a long time. 3  Tumours, possibly cancerous, can be a source of skeletal pain in the back.