Patients have bloody phlegm inside the throat when they wake up in the morning. First, consider that the patient has gingivitis, which may come out at night when the patient is not aware of it, and it is easy to have bloody phlegm when the phlegm is stuck in the morning. Second, the patient is considered to have rhinitis, which often opens the mouth to breathe at night when sleeping, causing the mucous membrane of the patient’s pharynx to be especially dry, and when clearing the throat in the morning, it is especially easy to break the mucous membrane of the back wall of the pharynx, resulting in the situation of blood in the phlegm. In life, patients must actively treat rhinitis and pay attention to the air environment, which needs to be within a certain humidity range to avoid the situation of bloody phlegm inside the throat. If the patient has gingivitis, must go to the stomatology department for further treatment, commonly used clinically is to use antibiotics, and compound tinidazole solution gargle, after active treatment, the condition will definitely improve. In addition, it is also necessary to be alert to malignant tumors in the throat.