Medically reviewed by Soma Mandal, MD Petechiae are tiny red, purple, or brown spots on your skin, inside of your mouth, or ...

Petechiae sometimes appear in clusters and may look like a rash. If you have tiny red, purple, or brown spots on your skin, they could be petechiae. They're not a disease, but a symptom.

Petechiae are flat spots that may appear as a result of bleeding underneath the skin. The spots are typically reddish when they first appear, and they might become purple, blue, or brown with time.