Female patients with pain on the right side of the chest should rule out inflammation of the costal cartilage, which usually occurs in the 2nd-4th ribs, often on both sides of the chest, or unilaterally with significant pain. When the parasternal cartilage is touched, it is accompanied by significant pressure pain, which is mostly of a burning nature, and often throbbing pain. Another condition that needs to be ruled out is respiratory diseases, such as bronchitis, bronchopneumonia, and pneumonia, which may cause frequent chronic coughing and significant pain in the sternum or parasternal area, which is not difficult to identify and is mostly accompanied by obvious respiratory symptoms, such as coughing and sputum production. It is also necessary to rule out some digestive system diseases, such as reflux esophagitis, which may also cause significant pain behind the sternum or on the side of the sternum, but most of these patients have a series of digestive system symptoms such as acid reflux, belching, and eructation.