Q: My platelets were slightly elevated on my blood test. What can cause this? A: Platelets are part of how our body forms clots to stop bleeding. They are produced in the bone marrow by cells called ...

Add Yahoo as a preferred source to see more of our stories on Google. Few bodily functions are as misunderstood as blood clots. While most people have heard about blood clots in the heart or brain ...

DEAR MAYO CLINIC: I am 33 years old and recently had an annual physical and routine blood work. I'm active with two children and feel fantastic, but my platelet count came back as 651. My health care ...

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, ...

Here are some of the conditions and dangers associated with some blood clots and how they can become serious and even ...