A high platelet count can lead to mild bruising or serious conditions like stroke. There are two types of thrombocytosis: primary, caused by genetic changes, and secondary, due to other conditions. If ...

A high platelet count indicates too many of the small cells (platelets) that help form blood clots. This can cause dangerous clots and bleeding. Also called thrombocytosis or thrombocythemia, ...

"We've long known that ovarian cancer patients often have markedly increased platelet counts but we haven't known why this happens or understood its relevance, if any, to disease progression," said ...