If a patient develops right upper chest pain, there are usually several factors as follows: 1. The most common factor is cardiogenic factor, such as the patient has unstable angina pectoris with atherosclerotic heart disease, or acute myocarditis, pericarditis, pleural effusion, endocarditis, or heart valve disease, all of the above factors can lead to right upper chest pain due to insufficient blood supply to the heart. 2, respiratory system diseases will also appear the above situation, such as right pneumothorax or right lung infection, large pneumonia, will also appear the clinical symptoms of right chest pain. 3, if the skin on the right side of a certain herpes zoster, will also appear in the right side of the chest area along the intercostal direction of pain. 4, for women, if the right breast has mastitis, lobular hyperplasia, tumor occupancy and other conditions, there will also be chest pain.