瘀点是皮肤上形成的细小圆点。瘀点由出血引起，因此呈红色、棕色或紫色。这些小斑点常常成片形成，看起来可能像皮疹。通常摸起来平坦，按上去不褪色。有时在口腔内表面或眼睑上出现。
瘀点很常见，可以由多种不同状况引起。有些瘀点可能很严重。
导致皮肤上出现小圆斑（称为瘀点）的某些原因可能很严重。如果您全身出现瘀点，或您不能确定瘀点的原因，请尽快联系您的医疗护理团队成员。
显示参考文献
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Original article: https://www.mayoclinic.org/zh-hans/symptoms/petechiae/basics/causes/sym-20050724