Petechiae are tiny red, flat spots that appear on your skin. They are a sign of blood leaking from capillaries under your skin. Capillaries are the tiniest blood vessels that connect arteries to ...

The spots are typically reddish when they first ... anticonvulsant carbamazepine have both been known to cause petechiae. Certain blood thinners like heparin and warfarin can cause the condition ...