Generally speaking, emphysema does not cause edema of the patient’s body or face. If the patient has edema of the face, it is very likely that the condition has further developed or other diseases have appeared. 1. Right heart failure: When the condition of emphysema further deteriorates, it is likely to lead to pulmonary hypertension and right heart failure, i.e., pulmonary heart disease, which may lead to facial edema. 2. Malnutrition: patients with severe emphysema may have symptoms such as loss of appetite and weight loss in the late stage, leading to malnutrition and hypoproteinemia, which may also cause facial edema. 3. Other diseases: If emphysema patients are combined with allergic diseases or oral diseases, they may also have symptoms such as swollen face. Swollen face can also be caused by other diseases. If the symptoms are not relieved or aggravated, it is recommended to consult a doctor in time to clarify the cause of the disease and standardize the treatment under the doctor’s guidance to avoid delaying the condition.