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A petechia (pronounced /pɨˈtiːkiə/, plural petechiae /pɨˈtiːkɪ.iː/) is a small (1-2mm) red or purple spot on the body, caused by a minorhemorrhage (broken capillary blood vessels)[1].

"Petechiae" refers to one of the three major classes of purpuric skin conditions. Purpuric eruptions are broadly classified by size into three broad categories. Petechiae is generally used to refer to the smallest of the three classes of purpuric skin eruptions, those that measure less than 3 mm.

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