This condition is called pressure pain, which may be caused by the following: First, there may be some diseases of the gastrointestinal tract, such as acute or chronic gastroenteritis, gastrointestinal tract dysfunction, or intestinal spasm, intestinal colic, intestinal obstruction may occur. In addition, acute appendicitis may cause significant pressure pain and rebound pain in the right lower abdomen. Secondly, it may be some diseases of the urinary system, such as urinary stones or urinary tract infection, which usually have pressure pain in the lower or middle abdomen bilaterally, but no rebound pain, usually combined with percussion pain in the kidney area. Third, there may be some gynecological problems, such as some common gynecological diseases, such as dysmenorrhea, endometriosis, ovarian corpus luteum rupture, or ovarian cyst torsion, ectopic pregnancy rupture bleeding and so on.