Patients with blood in the nose symptoms performance, there may be the case of fire, may be bad habits, pathological factors, as follows: 1, bad habits: patients may be excessive voice speech, too much smoking, drinking and other factors, resulting in nasal mucosa congestion, dry performance, some patients may be affected by excessive mental, emotional stress, or recent repeated fatigue, Some patients may be affected by excessive mental and emotional stress, or recent repeated fatigue, staying up late, irregular work and rest, etc., which may cause the body to become inflamed. The endocrine function disorder may also trigger the performance of dry nasal mucosa, resulting in repeated symptoms of blood in the nose. 2, pathological factors: some patients may have a certain degree of nasal cavity, sinus inflammatory infectious, and allergic disease factors, nasal cavity, sinus, nasopharynx has some abnormal proliferation of biological conditions, may also trigger the symptoms of blood in the nose, need to pay attention to further detailed examination, to The cause of the disease should be clarified.