Hemoptysis is a bleeding symptom due to inflammation or ulcers and other causes of organ mucous membrane breakage and blood vessel damage. Clinical manifestations of hemoptysis are that the color of blood is dull red and often mixed with food residue, and it can also manifest as dizziness, blurred vision, fatigue, abdominal pain and diarrhea, tachycardia, pallor, cold sweat and other symptoms. Nutritional disorders in children and adolescents, the elderly due to improper diet and the lowering of respiratory defense function, can lead to reduced body resistance, very susceptible to respiratory infections, and become a potential factor for future complications of hemoptysis. What is the dietary care for hemoptysis with skin and mucous membrane bleeding? Eat more food containing vitamin C, vitamin K: vitamin C deficiency, easy to make the connective tissue formation is poor, so that the capillary wall is not sound, easy to occur bleeding. Vitamin K can promote the synthesis of plasminogen, so those who have a tendency to bleed can eat more food containing vitamin C and vitamin K. They are widely distributed in a variety of vegetables, fruits and vegetables. They are widely distributed in a variety of vegetables, fruits, especially orange, grapefruit, lemon, tomato and green leafy vegetables (such as alfalfa food and spinach) in the most abundant, animal offal such as liver, kidney and other content is also more. After hemoptysis, the diet should be light, soft, easy to digest and absorb, and rich in nutrients (mainly protein and vitamins). Vegetables such as capers, squash, pea shoots, celery and so on have the effect of clearing lung fire, can be eaten often. Fruits such as pear, water chestnut, loquat, lotus root, persimmon cake, etc. have the effect of nourishing yin and generating fluids, clearing heat and lowering fire, and treating hemoptysis. In addition, drinking alcohol can lead to chronic malnutrition, vitamin deficiency, so that the brittleness of blood vessels increased, easy to induce hemoptysis.