Spitting up blood may be caused by fire or other causes, such as inflammation, bleeding gums, lung diseases and cardiovascular diseases. Therefore, it is recommended to go to the hospital for X-ray, laryngoscopy and bronchoscopy in time to clarify the specific causes and then treat the symptoms. If it is caused by fire, you can take some medicine to remove heat and fire for treatment; if it is caused by bleeding gums, you should do a good job of oral hygiene maintenance and treat the gums according to their specific conditions; if it is caused by inflammation, you should take anti-inflammatory drugs for treatment under the guidance of a doctor; if it is caused by lung diseases, such as tuberculosis, lung abscess, etc., or cardiovascular diseases, such as mitral stenosis, etc. If the spitting is caused by pulmonary diseases such as tuberculosis, pulmonary abscess, or cardiovascular diseases such as mitral stenosis, it is relatively serious and should be treated actively. Patients with blood in spitting up sputum caused by fire should pay attention to eating less spicy and fried food and more fruits and vegetables. Drinking the right amount of tea to remove fire and having a regular work and rest schedule can also help relieve the symptoms of fire.