过敏性紫癜是小儿常见出血性疾病之一,以血液溢于皮肤、黏膜之下,出现瘀点瘀斑、压之不褪色为其临床特征。属中医学血证范畴,与中医古籍记载中的“肌衄”、“葡萄疫”、“紫癜风”等病证相似。现代医学多认为过敏性紫癜是一种免疫复合物介导的以小血管炎为主要病变的系统性血管炎,其基本病理改变包括广泛的毛细血管和小动脉炎症,使毛细血管的通透性和脆性增强,从而引起渗出性出血和水肿,多发生于皮肤和黏膜部位,亦可见于胃肠道、关节和肾脏改变。目 Henoch-Schonlein purpura is one of the most common hemorrhagic diseases in children. The blood is spilled on the skin and mucous membranes, and petechiae petechiae appear. The non-fading pressure is its clinical feature. It belongs to the category of TCM blood syndrome and is similar to the syndromes of “Muscle”, “Grape”, “Vitiligo” in ancient Chinese medicine records. Modern medicine and more that allergic purpura is an immune complex-mediated small vasculitis as the main lesion of systemic vasculitis, the basic pathological changes include extensive capillary and arteriolar inflammation, the capillary permeability And increased brittleness, resulting in exudative bleeding and edema, occurred in the skin and mucous membranes, also found in the gastrointestinal tract, joint and kidney changes. Head