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Cook Children's Hematology and Oncology
Hematology and Oncology - We do it all for kids.

ThrombocytopeniaCook Children's


Thrombocytopenia is a blood disorder that is caused by a low platelet count. The platelets are the cells in the blood that help blood to clot. Children with thrombocytopenia may have excessive bleeding, be easily bruised or develop a non-itchy rash.

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What causes thrombocytopenia?

There are three major causes of thrombocytopenia:

There can be many reasons why the bone marrow does not make enough platelets. Some of those include having:

Breakdown of platelets in the bloodstream or liver can be caused by a variety of health conditions. Some of the more common are:

Sometimes drugs used to treat other illnesses can also cause a temporary breakdown of platelets.

What are the symptoms?

Your child may not have any symptoms at all, or may exhibit one or more of these more general symptoms:

Testing and diagnosis

Testing and diagnostics will typically include:

Additional tests may include:

Once the hematology and oncology team has diagnosed the cause and type of your child’s thrombocytopenia, your pediatric specialist will provide a plan of care and treatment.


Because the hematology and oncology team at Cook Children’s has extensive experience in the causes, diagnosis and treatment of thrombocytopenia, you can trust that your child will have access to the latest advancements in medical treatment including research and clinical trials. And because our focus is on kids and teens, a team that understands the importance of care when it comes to your child and your family.

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We are here to help.

If your child has been diagnosed, you probably have lots of questions. We can help. For information on support, research clinical trials, and resources, click here. If you would like to schedule an appointment, refer a patient or speak to our staff, please call our offices at 682-885-4007.


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