The human abdomen is located between the pelvis and the chest and occupies a large area. In order to accurately describe the location of abdominal symptoms, the abdomen can be divided into several areas. Different organs are distributed in each area, which is helpful to the preliminary judgment of the diseased part.
①Right upper abdomen: liver, gallbladder, etc. The main causes are gallstones, cholecystitis, hepatitis, liver abscess and so on. ② Upper abdomen: stomach pylorus, duodenum, etc. The main causes are gastric and duodenal ulcers, various types of gastritis or indigestion. ③ Left upper abdomen: stomach, pancreas and spleen, etc. In addition to various gastric diseases, pancreatic diseases are common. ④ Right abdomen: ascending colon, jejunum, part of duodenum, etc. ⑤ Middle abdomen: omentum, sagging stomach or transverse colon, etc. ⑥ Left abdomen: descending colon, jejunum, ileum, etc. ⑦ lower right abdomen: cecum, appendix, lower end of ileum, etc. ⑧ Lower abdomen: uterus, bladder and rectum, etc. ⑨ Left lower abdomen: sigmoid colon, fallopian tube, etc.
Source: Health Bagui