The pain under the left side of the rib cage in women: 1, physiological causes: first of all, consider whether there is anxiety, anger caused by forked gas, liver qi depression, because girls are more emotional, sometimes may not be able to control their temper and cause local pain caused by liver qi depression. 2, pathological causes: whether there is swelling in the breast area, sometimes because of nodules or because of coronary heart disease, angina, myocardial blood supply Insufficient blood supply to the heart muscle may cause pain under the left rib cage. If it is because of liver qi, keep a stable mind, eat a light diet, do not eat chili, mustard stimulating food, difficult to digest food, you can take liver relaxation pills, appropriate activities to divert attention. If it is because of insufficient blood supply to the heart muscle, you need to do an electrocardiogram to see the current cardiac function, and the medication is generally chosen from compound salvia drops or nitroglycerin.