Nosebleed with dirty blood phlegm is because when you have a nosebleed the nosebleed enters the mouth from the back nostril, so the most important thing is to lower your head so that the nosebleed flows out as much as possible, and at the same time press the root of the nose to stop the bleeding. And try to spit out the blood that flows into the mouth, don’t swallow it. Avoid nosebleeds have dirty blood phlegm at the root of avoid nosebleeds, nosebleeds can be caused by physiological factors, but also by dry rhinitis, thrombocytopenic purpura and other diseases. It can be treated with general treatment, medication as well as surgery. 1. Physiological reasons: when the air is particularly dry, nosebleeds may occur, and it is recommended to use a humidifier to remove the causative factors to solve the problem. 2. Dry rhinitis: patients may feel dryness in the nose, and may be accompanied by symptoms such as nosebleeds and irritation in the nose. General treatment includes daily saline nasal wash. Oral vitamins that nourish the nasal mucosa, including vitamins A, B and C, can be used to moisturize the nasal mucosa with compound peppermint nasal drops. If conservative treatment is ineffective, surgical treatment can be taken, mainly to narrow the nasal cavity to reduce, reduce the inhalation of air. Thrombocytopenic purpura: can also cause nosebleeds, usually accompanied by bleeding spots elsewhere on the skin. Severe platelet drop can be fed with platelets and supplemented with hormonal therapy such as prednisone. All of the above medications should be used under medical supervision. Nosebleeds can also have other causes, such as hypertrophic rhinitis. If it occurs frequently or the nosebleed can not be stopped, as soon as possible to find out the cause of medical treatment, standardized treatment, you can avoid nosebleeds with dirty blood phlegm.