If your complete blood count shows low red blood cells, you may have anemia during pregnancy, which may cause symptoms like ...

The Red Cross announced Monday they’ve lost about 25% of their national blood supply leading to the emergency declaration and are urgently asking anyone with type-O blood to donate. Heat waves ...

They are spread between hosts by mosquitoes, spend some time maturing in liver cells, and then eventually end up inside red blood cells. Once there, the parasites proliferate, feasting on hemoglobin.

There are several hundred thousand platelets in each drop of blood. Like red and white blood cells, platelets are made in bone marrow.