The most common bleeding in the human body under pathological conditions is a common disease in rhinology, also known as epistaxis. It can be caused by lesions in the nasal cavity itself, but also by perinasal or even systemic lesions, so it should be considered comprehensively in treatment.
(A) Local etiology 1, increased venous pressure in the head and neck; 2, increased brittleness of the blood vessel wall; 3, hereditary capillary dilation; 4, blood coagulation mechanism disorders; 5, rapid changes in air pressure.
(B) Systemic etiology 1.General treatment; 2.Commonly used hemostatic methods: cautery, tamponade; 3.Systemic treatment.