Patient's question:
Patient age: Nine yearsMain symptoms: Nosebleed. Itching. Onset time: A few days ago
Laboratory test results: None
Doctor's answer:
The causes of nosebleeds include:1. Local causes. Trauma, injuries to the nose and sinuses, fractures of the anterior and middle cranial fossa, postoperative complications of nasal and sinus surgery, changes in air pressure, as well as nose-picking and insertion of nasogastric tubes, can all cause nosebleeds.
Secondly, inflammation, such as dry rhinitis, atrophic rhinitis, tuberculosis, and granulomas, can lead to mucosal erosion, ulcers, or blood vessel rupture, resulting in bleeding.
Thirdly, tumors, such as malignant tumors in the nasal cavity, sinuses, or nasopharynx, may cause recurrent nosebleeds.
2. Systemic causes. Any systemic disease that can lead to increased arterial or venous blood pressure, impaired coagulation function, or changes in vascular fragility may cause nosebleeds. Examples include hemophilia, leukemia, hemorrhagic purpura, aplastic anemia, collagen diseases, hypertension, arteriosclerosis, cor pulmonale, deficiencies of vitamins C, B2, P, and K, rheumatic fever, chronic diseases of the liver, spleen, and kidneys, acute infectious diseases, high fever, uremia, sepsis, and severe systemic diseases that lead to disseminated intravascular coagulation (DIC).
For nosebleeds, it is essential to identify the underlying cause and seek timely treatment.