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 nostrils, and it is often easier to diagnose the bleeding foci found in the lower part of the anterior 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 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, with tarry stools, can continue for several days after the vomiting of blood stops. It is advisable to eat foods rich in vitamin C, high quality protein nutrients and dietary fiber. The following foods are recommended to be eaten in moderation: 1, lemon lemon has an appetite, the prevention of heart and lung disease, clearing heat and phlegm, antibacterial and anti-inflammatory effects. Make tea and drink 1-2 cups a day. 2, lean meat lean meat is rich in high-quality protein food, the body’s recovery to provide nutrients. Daily consumption of 300-400 grams is appropriate. 3.Celery has the function of calming the liver and reducing stress, calming the mind, preventing and fighting cancer, nourishing the blood, clearing heat and detoxifying the body, which is helpful for recovery. It is appropriate to consume 300-350 grams per day.