Hidden pain in the middle of the lower chest cavity can be caused by coronary heart disease, pleurisy, lung disease, digestive system diseases and other factors. 1. Coronary heart disease: when angina pectoris attack occurs in coronary heart disease, it can appear in the anterior region of the heart or in the middle of the chest cavity and other areas of pressure-like pain, and can be accompanied by panic, palpitations (rapid heartbeat, often accompanied by panic) and other uncomfortable symptoms. 2. Pleurisy: pleurisy can appear in the chest cavity, chest pain, chest tightness, the nature of the pain is mostly stabbing or pulling pain, but also can be manifested as symptoms of hidden pain. 3. Lung disease: when bronchial or lung infection occurs, it may cause vague pain in the middle of the chest cavity, accompanied by coughing and coughing up sputum, dyspnea, fever and other manifestations. 4. Digestive system diseases: when there is gastritis, gastric ulcer and other diseases, there can be a hidden pain in the middle of the chest cavity. Typical symptoms of diseases such as gallbladder stones and cholecystitis are pain in the right upper abdomen, but the pain symptoms often appear right below the chest cavity, which is often misdiagnosed as gastric diseases. If you have pain in the middle of the lower chest, you should seek medical attention in a timely manner. Under the guidance of a specialist, you can actively pursue appropriate treatments to help alleviate the discomfort as soon as possible.