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

The Defense Advanced Research Project Agency, the Pentagon's top research arm, wants to find out if red blood cells could be modified in novel ways to protect troops and help them manage extreme ...

Red blood cells (RBC) can be present in urine even when ... in the urine. A very small amount of RBCs may be present in a normal urine sample. Guidelines may vary slightly by laboratory, but ...