High white blood cell count

A high white blood cell count, also known as leukocytosis, can be caused by a variety of conditions. White blood cells, also known as leukocytes, are an important part of the immune system and help to fight off infections and other foreign invaders. A high white blood cell count can indicate that the body is fighting an infection or inflammation.

Some common causes of a high white blood cell count include:

• Infections, such as pneumonia or a urinary tract infection
• Inflammatory conditions, such as rheumatoid arthritis or lupus
• Cancers, such as leukemia or lymphoma
• Certain medications, such as steroids
• Physical or emotional stress

It's important to see a doctor if you have a high white blood cell count to determine the cause and appropriate treatment. Your doctor may order additional tests, such as a complete blood count (CBC) or a differential to identify which type of white blood cells are elevated, this will help to determine the cause and appropriate treatment.