The cause of right lower abdomen pain when lying down, not pain when standing up may be appendicitis, right adnexitis, intestinal spasm and other diseases, as shown in the figure. There are many other causes of right lower abdominal pain when lying down and no pain when standing up that should be taken seriously, and it is necessary to consult a doctor in time to find out the cause of the disease and follow the doctor’s instructions for further treatment or therapy.