The oral and nasal cavities are connected, and bleeding from the nose bleeding from the mouth may be caused by localized inflammation of the nasal or oral cavity, blood system disorders, side effects of medications, or other systemic diseases.
1. Local inflammation: when the environment is too dry nasal mucosa capillary breakage or long-term rhinitis, the nasal cavity may bleed and flow into the oral cavity resulting in nasal oral bleeding. Oral soft tissue trauma or long-term inflammation of the oral gums lead to oral bleeding, and blood will also flow back into the nasal cavity during sleep.
2. Blood system diseases: patients with blood system diseases such as leukemia, hemophilia, and anaphylactic purpura may have bleeding tendency and symptoms of oral bleeding and nasal bleeding.
3. Drug side effects: cerebral thrombosis, coronary heart disease and other patients will take antiplatelet drugs such as aspirin, clopidogrel, etc. to prevent and control blood clots, but also prone to bleeding in the mouth and nose.
4. Other systemic diseases: such as cirrhosis of the liver due to the reduction of coagulation factors, can also cause bleeding from the mouth and nose.
The specific causes of nose and mouth bleeding need to go to the hospital for clinical and laboratory examination to confirm the diagnosis.