What Causes Petechiae?

What Causes Petechiae?

Definition Petechiae are pinpoint-sized red dots under the surface of the skin. The dots are red because they contain blood that has leaked from tiny blood vessels (capillaries) into the skin. Petechiae may be an indication of a serious underlying problem that requires medical evaluation. Causes Petechiae are quite tiny (less than 3 millimeters in…