Your doctor will ask about your symptoms and medical history. A physical exam will be done. Chickenpox is usually diagnosed based on the rash. Blood and laboratory tests to identify the varicella zoster virus (VZV) are available for use in questionable cases, but they are rarely necessary.
Blood and laboratory tests—several tests are available that may help confirm the diagnosis of chickenpox, including:
Chickenpox. EBSCO DynaMed website. Available at: http://www.ebscohost.com/dynamed. Updated September 8, 2015. Accessed February 29, 2016.
Chickenpox. American Academy of Family Physicians Family Doctor website. Available at: http://familydoctor.org/familydoctor/en/diseases-conditions/chickenpox.html. Updated May 2010. Accessed February 29, 2016.
Chickenpox (varicella). Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/chickenpox. Updated August 22, 2013. Accessed February 29, 2016.
Long S, Pickering L, Prober C. Principles and Practice of Pediatric Infectious Diseases. 3rd ed. New York, NY: Churchill Livingstone; 2008.
Last reviewed February 2016 by Michael Woods, MD, FAAP
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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