Radioactive pain in the back after cholecystectomy can be caused by postoperative complications, increased pressure in the bile ducts, and diseases of the back itself. 1. Postoperative complications: fluid accumulation and infection in the operated area after cholecystectomy, as well as fluid accumulation and infection in the area under the diaphragm can stimulate the local area and cause discomfort, which can be radiated to the back and lead to the manifestation of radiating pain. 2. Increased bile duct pressure: after cholecystectomy, bile is directly excreted into the bile duct, which can cause increased pressure in the bile duct, resulting in spasmodic pain in the bile duct area, which may radiate to the back and cause pain symptoms. 3. Diseases of the back itself: The back pain after cholecystectomy may be related to the diseases of the back itself, such as myofasciitis and other diseases of the back, which can also lead to pain symptoms in the back. If you experience radiating pain after cholecystectomy, you should consult a doctor in time and take appropriate treatments under the guidance of a specialist, which will help to relieve the pain and other uncomfortable symptoms as soon as possible.