Researchers from the University of Tokyo have found a way to observe clotting activity in blood as it happens—without needing invasive procedures. Using a new type of microscope and artificial ...

On left is an activated "ordinary" platelet (scanning electron microscope image), the right -- "super-activated" (procoagulant) platelet (transmission electron microscope image).

Thrombocytopenia, or a low platelet count, can impair blood clotting, potentially leading to severe bleeding from wounds. Underlying health conditions like autoimmune diseases and cancers, as well as ...

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 ...