Right chest pain should beware of coronary heart disease, costochondritis, pneumonia, pleurisy, breast hyperplasia and other diseases. 1. Coronary heart disease: commonly found in people with risk factors such as obesity, high blood pressure and high blood cholesterol. Factors such as activity or emotional excitement can trigger angina pectoris, resulting in crushing severe pain in the precordial region of the chest. The pain may radiate to the left shoulder, left arm, left fingers, etc. Some people with atypical symptoms may have hidden pain in the right chest. 2. Costochondritis: when suffering from costochondritis, usually the skin surface and subcutaneous tissue are normal, and the pain can be induced or aggravated by factors such as the activity of the upper limb on the same side, coughing movement and lying on the side. But after rest, the pain symptoms can be reduced. 3. Pneumonia: it refers to the inflammatory lesions occurring in the terminal airways, alveoli and interstitium of the lungs caused by various factors. When inflammation occurs in the right side of the lungs, it can lead to fever, cough, chest pain and other symptoms, making the right side of the chest appear vaguely painful. 4. Pleurisy: pleural inflammation caused by various reasons, because of the proliferation of fibrous tissue between the pleura of the dirty layer and the wall layer, increasing the friction between the pleura, the symptom of hidden pain in the right chest can occur. 5. Breast Hyperplasia: Mostly seen in middle-aged women, it can lead to pain on one or both sides of the chest. Usually the pain is obviously related to the menstrual cycle, which is characterized by swelling and vague discomfort in the chest before menstruation, and the pain gradually decreases after menstruation, and so on. When a vague pain is felt in the right chest, it is recommended to go to the hospital as soon as possible to rule out other serious causes of the disease in order to carry out targeted treatment as soon as possible.