紫癜指皮肤粘膜下出现瘀点瘀斑 ,具有压之不褪色的特点 ,包括过敏性紫癜、血小板减少性紫癜及化脓性脑膜炎等疾病。各年龄均可发病 ,尤以学龄儿童多见。祖国医学早在几千年前就对“紫癜”有了认识 ,《医宗金鉴·外科心法》中有关“葡萄疫”的记载 ,《医学入门·肌血衄》中提到 Purpura refers to the skin submucosal petechia ecchymosis, with the pressure of non-fading features, including allergic purpura, thrombocytopenic purpura and purulent meningitis and other diseases. All ages can be onset, especially in school-age children more common. As early as thousands of years ago, the motherland knew about “purpura”, and the “grapevine epidemic” in the “Medical Science of Jinjian and Surgical Heart” mentioned in “Medical Introduction to Muscle Blood”