Petechiae are red or purple dots on the skin that happen when tiny blood vessels called capillaries break under the skin's surface, creating a petechial rash. A petechial rash is caused by ...

The rash consists of small dots that are rough to the touch. Petechiae form a type of rash that results from bleeding under the skin. It shows as red or purple spots that measure 2 millimeters or ...

you may only see brown plaques in dark skin.” If you notice tiny, rough red spots on your skin—especially on your upper arms, thighs, cheeks, or buttocks—you may be dealing with keratosis ...