瘀点（petechia）是在身体上的一个红色或紫色的血点块，医学上也称作出血点。

2毫米（mm）以下的红色或紫色的血点块。其他大小的红色或紫色的血点块请参见：紫斑，瘀斑

A petechia, plural petechiae, is a small (1–2 mm) red or purple spot on the skin, caused by a minor bleed (from broken capillary blood vessels).

Petechia refers to one of the three descriptive types of bleeding into the skin differentiated by size, the other two being purpura and ecchymosis. Petechiae are by definition less than 3 mm.