正常的毛细血管和小血管在止血中占有重要地位,血管的完整性包括抵抗力、通透性及舒缩功能对制止出血具有显著意义。近年来,随着对血管性出血的深入研究,病种有所增加,机理逐步阐明。本文就血管性出血的类型与发病原理,综述如下:正常微血管的止血生理正常微血管系统具有复杂的组织学结构和一系列机能调节,完成血管介导性止血。在扫描电镜下观察,血管内皮细胞表面光滑,彼此间呈指状交叉联接,并复有纤维蛋白和血小板附着,同时内皮细胞不断地合成纤维蛋白溶酶原释放入血管内,使纤凝与纤溶保持动态平 Normal capillaries and small vessels play an important role in hemostasis. The integrity of blood vessels, including resistance, permeability and systolic and diastolic function, have significant significance in stopping the bleeding. In recent years, with the in-depth study of vascular bleeding, the disease has increased, the mechanism gradually clarified. This article on the type of vascular hemorrhage and pathogenesis, are summarized as follows: The normal microvascular hemostasis Physiological microvascular system has a complex histological structure and a series of functional regulation, complete vascular-mediated hemostasis. Observed by scanning electron microscopy, the surface of vascular endothelial cells smooth, interdigitated cross-linked, and complex fibrin and platelet adhesion, while endothelial cells continue to synthesize plasminogen release into the blood vessels, so that the coagulation and fiber Solve the dynamic balance