Girls who have chest tightness, shortness of breath, accompanied by back pain should consider the following points: First, endocrine metabolic diseases should be considered, often in patients with endocrine disorders, there will be the above symptoms, in addition to patients with cardiac neurosis caused by phytodynamics, will also often have chest tightness, shortness of breath, back pain. Second, if a girl has acute myocarditis, acute pericarditis or congenital heart disease, heart valve disease, there will be insufficient blood supply to the heart muscle, which will also lead to chest tightness, shortness of breath, back pain symptoms. Third, if a girl appears traumatic factors, triggering a fracture of the sternum or ribs, contusions of the surrounding soft tissue, will also have this symptom. Fourth, if girls have breast diseases, such as acute mastitis, lobular hyperplasia of the breast, or even tumor occupancy factors will also have chest tightness, shortness of breath, back pain.