What causes nosebleeds when brushing teeth?
Bleeding from the nose while brushing teeth may be related to dry air, nasal foreign bodies, nasal injury, or other causes.
1. Dry Air
The weather during winter is relatively cold and dry. Prolonged exposure to dry environments may cause capillaries on the nasal mucosal surface to rupture and bleed, which could result in nosebleeds during tooth brushing.
2. Nasal Foreign Body
A foreign body remaining in the nasal cavity for a long time may lead to clinical symptoms such as erosion and bleeding of the nasal mucosa, local pain, and a sensation of a foreign object. This can occur at any time.
3. Nasal Injury
Frequently picking the nose with fingers may damage the nasal mucosa and local blood vessels, potentially causing nosebleeds while brushing teeth.
Bleeding from the nose while brushing teeth might also be associated with acute rhinitis, hemorrhagic fever, influenza, or other conditions. It is recommended to promptly visit an otolaryngology department at a hospital to undergo relevant examinations such as nasal endoscopy and complete blood count, to identify the specific underlying cause and receive appropriate treatment accordingly.