Hemoptysis (hemoptysis) is bleeding from the respiratory organs below the larynx that is discharged from the mouth by coughing action Hemoptysis must first be differentiated from oral, pharyngeal, and nasal bleeding Oral and pharyngeal bleeding are easily observed as localized foci of bleeding. Nasal bleeding mostly comes from the anterior nostril, and it is often easier to diagnose the bleeding foci found in the anterior and inferior part of the nasal septum. Sometimes the bleeding from the posterior part of the nasal cavity is large and can be misdiagnosed as hemoptysis. The diagnosis can be confirmed if the blood is seen to flow down the pharyngeal wall from the posterior nostril by nasopharyngoscopy. The former often has a history of tuberculosis, bronchiectasis, lung cancer, heart disease, etc. Before bleeding, there is a cough, throat itching and chest tightness, and the blood is bright red, mixed with foamy sputum, usually without tarry stools; the latter often has a history of peptic ulcer, cirrhosis, etc. Before bleeding, there is upper abdominal discomfort, nausea and vomiting, etc. The blood is brown-black or dark red, sometimes bright red, mixed with food residue and gastric juice. Mixed with food residue gastric juice, tarry stools, may continue for several days after the vomiting of blood has stopped. Prevention of hemoptysis with jaundice 7 elements: 1, prevention of colds when going out to increase clothing according to weather changes, to prevent cold colds. 2. Pay attention to diet diet rich in vitamin food is preferred. 3, “managing the air” room often ventilated to maintain the appropriate temperature (generally 18 to 25 ℃) and humidity (generally 40% to 70%). 4, exercise to exercise moderate physical exercise and respiratory function exercise. 5, prepare emergency medicine home to prepare a small medicine box, especially to prepare enough cough medicine, such as the treatment of dry cough mainly spraying Torvillin (cough Bichen) tablets and syrup; to suppress cough mainly can be healed syrup; to suppress cough phlegm mainly brown amine combination. The family must have drugs to stop bleeding such as Yunnan Baiyao, sedative drugs such as Valium, etc. Note that the expired drugs in the small medicine box should be replaced in a timely manner. 6, quit smoking, limit alcohol patients suffering from respiratory diseases, must quit smoking, limit alcohol, to reduce the occurrence of hemoptysis triggers. 7, the mood to regulate the smooth Chinese medicine, emotional changes and disease have a certain relationship, such as “happy sad”, “worry hurt the lungs”. Like in “Dream of the Red Chamber”, Lin Daiyu, who suffered from tuberculosis, was usually overly worried and wept at flowers, and died of hemoptysis. Therefore, the prevention of hemoptysis should also pay attention to the cultivation of the body and sex.