Nosebleed three or four times a day is considered to be related to the stimulation of various factors leading to the damage of nasal mucosa and nasal blood vessels, which can be seen in a variety of nasal diseases, hematologic diseases and systemic diseases. 1. Nasal diseases: during the onset of sinusitis, nasal polyps, nasopharyngeal carcinoma and other nasal diseases, the stimulation of infectious or non-infectious pathogenic factors can damage the integrity of the nasal mucosa, resulting in the expansion of the nasal capillaries rupture triggered by nosebleeds three or four times a day this clinical symptom. During the onset of the disease, patients may be accompanied by nasal congestion, runny nose, nasal foreign body sensation, decreased sense of smell and other nasal discomfort; 2. Blood diseases: during the onset of blood diseases such as leukemia and platelet aplastic anemia, patients may suffer from nosebleeds three or four times a day due to the decline in blood clotting function. During the onset of the disease, patients may have symptoms such as decreased immunity, bleeding, skin ecchymosis and bleeding in other parts of the body; 3. Systemic diseases: during the onset of systemic diseases such as hypertension, influenza, liver cirrhosis, etc., patients may suffer from nosebleeds three or four times a day due to factors such as elevated intravascular pressure in the nose, congestive dilatation of nasal blood vessels, and impaired synthesis of coagulation factors. Nosebleeds need to be analyzed according to the patient’s past medical history, other clinical symptoms accompanying the onset of the disease, and relevant examination results in order to determine the cause of the bleeding and make a clear diagnosis.