The common causes of bedridden constipation in lumbar compression fracture include diet, pain stimulation, weakening of gastrointestinal function and spinal cord injury. 1. Diet: constipation can also be caused by a change in eating habits after a fracture, a decrease in appetite, or eating less food such as vegetables and fruits. 2. Pain stimulation: after lumbar vertebrae fracture, due to pain stimulation, it causes sympathetic nerve excitement, which inhibits the peristalsis of the stomach and intestines and causes constipation. 3. Weakening of gastrointestinal function: Because lumbar vertebrae compression fracture needs to lie in bed for a long time, the activity is obviously reduced, resulting in weakening of gastrointestinal peristalsis, thus causing constipation. 4. Spinal cord injury: if the lumbar compression fracture is more serious, causing spinal cord injury leading to paralysis, gastrointestinal peristalsis is weakened or even disappeared, constipation can also occur. There are many reasons for constipation after lumbar compression fracture in bed, and it is recommended to carry out laxative treatment under the guidance of the doctor.