Back pain after liver surgery may be caused by prolonged bed rest, overwork, and damage to body organs. 1. After liver surgery, the patient is bedridden for a long time, resulting in muscle atrophy in the back, which can cause obvious postoperative back pain. 2. Post-operative back pain after liver surgery may also be caused by overwork without full recovery, which may lead to back pain. 3. Back pain after liver surgery may also be due to the damage to the organs and surrounding areas caused by the surgery, which leads to local tissue damage and back pain after the surgery. After liver surgery, you should follow the doctor’s instructions for activities, diet and review, and avoid drinking, smoking, and staying up late at night.