When skin is cut or damaged, tiny cell fragments circulating in the blood, called platelets, arrive at the injury and spread out to stop the blood from leaking out. Once enough layers of platelets ...

Platelets (also called thrombocytes) are small blood cell fragments made by your bone marrow. They help form blood clots to stop you from bleeding when you've been injured. Platelets are small cell ...

A mean platelet volume (MPV) test measures the average size of platelets in your blood. Platelets are blood cells that your bone marrow makes. Healthy platelets clump together to help your blood clot ...