Coughing up blood generally means hemoptysis. Daily hemoptysis can be caused by bronchial disease, but other diseases besides bronchial disease can also cause daily hemoptysis. Hemoptysis is bleeding that comes from the airways below the larynx or from lung tissue and is coughed up through the mouth. A common cause of daily hemoptysis is bronchiectasis, which is often characterized by coughing, coughing up purulent sputum, and hemoptysis. Other bronchial diseases that can cause daily hemoptysis include bronchial tuberculosis, bronchial adenoma, and chronic bronchitis. In addition to bronchial diseases, other diseases of the respiratory system such as tuberculosis, bronchopulmonary cancer, lung abscess, and pulmonary fungal disease may also present with daily hemoptysis symptoms. In addition to pulmonary diseases, cardiovascular system diseases such as mitral stenosis and acute left heart failure may also induce pulmonary edema with pink frothy sputum that exhibits hemoptysis-like symptoms. Daily hemoptysis can also be caused by other diseases. If the symptoms are not relieved or worsened, it is recommended to consult a doctor in time to improve the examination, to clarify the cause of the disease, and to provide targeted treatment in time.