The symptom of hidden pain in the lower right abdomen after sitting for a long time may be caused by physiological factors, or pathological factors, such as appendicitis and other intestinal inflammation, prostatitis or female pelvic inflammatory disease and many other diseases, you should consult a doctor as soon as possible to find out the condition. 1. Hidden pain in the right lower abdomen after sitting for a long time may be a normal physiological situation, related to the peristalsis of the intestinal tract caused by sitting for a long time to slow down the intestinal discomfort caused by the retention of intestinal contents. Generally no treatment is needed, patients need to adjust the position, appropriate activities, avoid prolonged sedentary. 2. Appendicitis: Sedentary easily caused by the appendix lumen blockage, triggering inflammation of the appendix. 3. Other intestinal bowel inflammation: such as ulcerative colitis and intestinal tuberculosis, intestinal Crohn’s disease. Sitting for a long time leads to the slowing down of intestinal peristalsis, and the inflammatory stimulus factors are easy to accumulate in the ascending colon and lead to hidden pain in the right lower abdomen. 4. Prostatitis or female pelvic inflammatory disease: sedentary easily lead to the pelvis, prostate blood, which can appear inflammatory reaction, leading to the right lower abdominal pain. If the lower right abdominal pain occurs after sitting for a long time, after adjusting the position, appropriate activities without significant improvement, it is recommended to consult a doctor in a timely manner to identify the cause of the active treatment.