Medically reviewed by Gagandeep Brar, MD Key Takeaways A high platelet count can lead to blood clots and bleeding, which can be dangerous. Reactive thrombocytosis is often linked to another cause of ...

A high platelet count, or thrombocytosis, is diagnosed when platelet levels are greater than 450,000 platelets per microliter of blood. A high platelet count can lead to symptoms that range from ...

More than half of patients with myelofibrosis and low platelets treated with Vonjo saw platelets rise 58% and hemoglobin levels improve. More than half of patients with low platelets (thrombocytopenia ...

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 ...

Platelets are small types of blood cells that prevent excessive bleeding. It’s possible to develop low or high platelet counts related to a number of health conditions. Platelets are one of the main ...

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 ...

Hemoglobin helps red blood cells carry oxygen to your muscles and tissues. Abnormal hemoglobin levels can be a sign of several health problems. Hemoglobin is a component of your blood that delivers ...