The vague pain below the rib cage on the left side of women can be caused by two diseases: first, general surgery diseases, when there is enteritis or intestinal tumor, there will be vague pain below the rib cage on the left side, then it is necessary to consult the general surgery department, whether to conduct a colonoscopy, or ultrasound, CT examination to exclude tumor or enteritis. Second, thoracic surgery or respiratory diseases, tumors or inflammation in the chest cavity, such as tuberculous pleurisy or infection in the chest cavity, may cause hidden pain below the rib cage, and further diagnosis should be confirmed by radiography and CT examination.