Pain in the right chest when swallowing may be caused by esophagitis, lung infection, pleural lesions and so on. 1. Esophagitis: it is usually caused by the patient’s frequent consumption of irritating foods or decreased resistance, etc. Symptoms such as heartburn and difficulty in swallowing may occur, as well as pain in the right chest when swallowing. 2. Lung infection: Lung infection is usually caused by bacteria or germs invading the lungs, which may cause symptoms such as dyspnea, persistent cough, and usually pain in the right chest when swallowing. 3. Pleural lesions: pleural lesions are usually caused by infection in the chest cavity or tuberculosis bacillus, etc. Symptoms such as fever, chest tightness, etc. may occur, and pain in the right chest when swallowing may also occur. It is recommended that patients with symptoms of right chest pain when swallowing go to the hospital in a timely manner, under the guidance of the doctor for reasonable treatment.