Cardiogenic dyspnea occurs mostly in patients with underlying heart disease, such as coronary artery disease and wind heart disease, and is most often characterized by dyspnea during emotional excitement or exertion. Dyspnea can have different manifestations, such as dyspnea during exercise, also known as exertional dyspnea or nocturnal paroxysmal dyspnea. Because dyspnea cannot lie flat, it can only be relieved by elevating the pillow or sitting up, also known as telangiectatic breathing. The most severe form is called acute pulmonary edema, which is the most severe form of dyspnea. In addition, the patient may also experience poor appetite, bilateral lower extremity edema, cough, and hemoptysis at the same time.