If you have a new or existing heart problem, it's vital to see a doctor. Our heart health checklist can help you determine when to seek care. Health Home Conditions and Diseases. What are Platelets and Why are They Important? What is a healthy platelet count? What it means to have too many platelets The medical term for having too many platelets is thrombocytosis, and there are two types: Primary or essential thrombocytosis — Abnormal cells in the bone marrow cause an increase in platelets, but the reason is unknown.
Secondary thrombocytosis — The same condition as primary thrombocytosis, but may be caused by an ongoing condition or disease such as anemia, cancer, inflammation, or infection. Thin blood is the opposite of thick blood, which can increase the risk of blood clots and complications, such as stroke.
Thin blood can lead to…. A red cell distribution width RDW blood test can help detect the presence of anemia, along with what could be causing it. The test identifies the…. What do high or low platelet count levels mean? Medically reviewed by J. Keith Fisher, M. Platelet count blood test What to expect Platelet count is high Platelet count is low Takeaway A platelet blood count is a blood test that measures the average number of platelets in the blood.
What is the platelet count test? What to expect. What does it mean when your platelet count is high? Share on Pinterest Platelet levels can temporarily be higher than usual in people recovering from blood loss after surgery. What does it mean when your platelet count is low? Share on Pinterest Chemotherapy can cause low platelet volume. Latest news Scientists identify new cause of vascular injury in type 2 diabetes. Adolescent depression: Could school screening help?
Related Coverage. What types of blood disorders are there? Bone marrow contains stem cells that develop into red blood cells, white blood cells, and platelets. Platelets and other blood components are always needed. One donation could help save more than one life. Be a hero! Schedule your donation now. Platelets control bleeding in our bodies, so they can be essential to surviving surgeries such as organ transplant, as well as fighting cancer, chronic diseases, and traumatic injuries.
Symptoms of low platelets include bruising easily and unusual bleeding, such as excessive bleeding from a small cut or blood in urine or stool. Normally, your spleen works to fight infection and filter unwanted material from your blood. An enlarged spleen — which can be caused by a number of disorders — can harbor too many platelets, which decreases the number of platelets in circulation.
Platelets are produced in your bone marrow. Factors that can decrease platelet production include:. Some conditions can cause your body to use up or destroy platelets faster than they're produced, leading to a shortage of platelets in your bloodstream.
Examples of such conditions include:. Dangerous internal bleeding can occur when your platelet count falls below 10, platelets per microliter. Though rare, severe thrombocytopenia can cause bleeding into the brain, which can be fatal. Mayo Clinic does not endorse companies or products.
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