Hidden pain in the left upper abdomen near the rib cage, need to consider a variety of causes, may be caused by pleurisy, gastric disease, trauma or neuralgia, can be treated with antibiotics, take acid-suppressing drugs. 1. Pleurisy: the patient will have pain in the quarter rib area, the pain may be related to respiration, accompanied by limitation of deep breathing, and there will be fever, cough, sputum, chest X-ray examination can confirm the diagnosis. Antibiotics, such as amoxicillin and erythromycin, can be used empirically, or according to drug sensitivity test, and the condition will gradually improve. 2. Gastric diseases: Gastritis and gastric ulcer are common, and the typical symptom is pain in the left upper abdomen, which is often aggravated after eating, accompanied by acid reflux and belching (hiccups). Gastroscopy and Helicobacter pylori examination are recommended, and four drugs can be given for eradication treatment after diagnosis. 3. Muscle strain and neuralgia caused by trauma: go to thoracic surgery or orthopedics in time for detailed diagnosis and treatment. There is no specific treatment method, it is recommended to rest, moderate exercise on weekdays to enhance immunity. Hidden pain in the left upper abdominal ribs close to the abdominal position, we should consult a doctor in time, by the doctor to clarify the cause of the disease, and under the guidance of the doctor for treatment.