Pain in the middle of the bottom of the chest may be stomach pain, mostly due to gastritis, gastric ulcer and other digestive tract diseases; it may also be induced by heart disease as well as other diseases. It is recommended that patients seek medical examination in a timely manner, so that doctors can determine the specific lesions and take appropriate treatment according to the cause. There are several common conditions: 1. Gastroenterological diseases: 1. Gastritis: can be divided into acute, chronic and special types of gastritis, usually related to drugs, alcohol, trauma, Helicobacter pylori infection, etc. Common symptoms include stomach cramps, nausea, vomiting, loss of appetite, gastrointestinal bleeding, etc., which can also manifest as pain in the middle of the chest and below. Clinical treatment is mainly based on medication to relieve pain, such as taking aluminum thioglycollate and cimetidine to protect the gastric mucosa; mebendazole combined with lansoprazole to relieve gastric spasm, etc. For patients with gastrointestinal bleeding, perforation and other lesions can be treated surgically; 2, gastric ulcer: mostly caused by excessive secretion of gastric acid due to H. pylori infection, excessive consumption of spicy and irritating food, long-term use of irritating drugs, etc., mainly manifested as post-prandial bloating and epigastric pain and other symptoms. Treatment usually requires the removal of stimulating factors and the application of stomach care drugs to relieve symptoms, such as omeprazole, ulcers that do not heal for more than two weeks or complications such as perforation and bleeding need to be treated through surgery; 3. Other: diseases such as duodenal ulcer, cholecystitis, pancreatitis, hepatitis, gastric cancer, etc., can also appear symptoms of pain in the middle of the chest and below, can be improved gastroscopy, abdominal ultrasound, CT and other tests to help clarify the diagnosis and treatment according to the cause. Heart disease: 1, angina: mostly caused by myocardial ischemia, insufficient oxygen supply, the attack is mainly manifested as chest pain or chest tightness and other discomfort, but also can be manifested as pain in the middle of the chest, sometimes accompanied by palpitations, dyspnea, sweating, weakness and other symptoms. After diagnosis, we can choose appropriate treatment under the guidance of doctors, such as drugs, interventional and surgical treatment, etc.; 2, myocardial infarction: the causes include coronary artery vascular occlusion, myocardial ischemia, etc. When the attack occurs, there can be severe and persistent chest pain, which can be manifested as pain in the middle of the chest, accompanied by symptoms such as rapid heartbeat, nausea and pallor. The above symptoms need timely medical attention, and coma patients need to call 120 emergency; 3, other: such as pericarditis, coronary heart disease, heart failure and other symptoms may also appear in the middle of the chest pain, patients with edema, low-grade fever, respiratory distress and other conditions need timely medical attention, improve the electrocardiogram, cardiac ultrasound and other tests to help clarify the diagnosis. Third, other diseases: such as chest muscle ligament strain, pleural inflammation, rib fracture, costochondritis, pneumonia, etc. may also appear symptoms of pain in the middle of the chest, it is recommended to seek medical examination in time to help confirm the diagnosis and carry out the corresponding treatment. In addition, it should also be noted that no matter what the cause of the middle chest pain is, during the treatment period, it is necessary to maintain a healthy lifestyle, such as getting enough sleep, staying up less, eating less spicy, stimulating and greasy food, and paying attention to adding clothes during the cold season to avoid getting cold and aggravating the discomfort.