Nosebleeds in 70-year-olds may be caused by the dryness of the nasal mucosa, may also be suffering from hypertension, rhinitis and other diseases caused by the symptoms of nosebleeds can not be judged by nosebleeds is a sign of which disease. 1. Nasal mucosal dryness: after the elderly age, nasal submucosal glands atrophy, nasal secretion will be reduced, easy to lead to nasal mucosal dryness, induced by the nasal mucosa burning sensation, nosebleeds and other symptoms. 2. High blood pressure: If the elderly suffer from hypertension, frequent fluctuations in blood pressure may lead to increased vascular pressure, so that the nasal mucosa rupture of blood vessels, nosebleed symptoms. Patients are also prone to dizziness, headache, neck plate tightness and other symptoms. 3. Rhinitis: If the nose comes into contact with allergens such as pollen and dust mites, or if the nose is infected with pathogens such as coronavirus and coxsackievirus, rhinitis is easily induced. The elderly nasal mucosa is fragile, nasal mucosa long-term inflammation stimulation may appear nosebleed symptoms, may also be accompanied by nasal itching, runny nose, sneezing and other symptoms. It is recommended that the elderly after the symptoms of nosebleed, timely pinch both sides of the nose, or can play a temporary bleeding effect. If you can not successfully stop bleeding or frequent symptoms of nosebleeds, it is recommended to consult a doctor in time to identify the cause of the disease, standardized treatment.