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A blister is a fluid-filled bump on the skin.
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Blisters have many causes, such as:
Things that may increase the risk of blisters are:
Symptoms of a blister are:
The doctor will ask about your symptoms and health history. A physical exam will be done. Blisters may be diagnosed on appearance.
A blister will often heal without treatment. Sometimes the underlying cause needs to be treated.
Treatment options are:
To lower the risk of a blister:
American Academy of Dermatology
National Institute of Arthritis and Musculoskeletal and Skin Diseases
Canadian Dermatology Association
Abiad M, Kurban M, Abbas O. Recurrent blisters with pain following thermal burn injury to left leg and foot. Int J Dermatol. 2019;58(12):1377-1378.
Blistering skin conditions. DermNet New Zealand website. Available at: https://www.dermnetnz.org/topics/blistering-skin-conditions. Accessed January 29, 2021.
Blisters. Better Health Channel website. Available at: https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/blisters. Accessed January 29, 2021.
Blisters—causes. NHS Choices website. Available at: http://www.nhs.uk/Conditions/Blisters/Pages/Causes.aspx. Accessed January 29, 2021.
Blisters, calluses, and corns. Kids Health—Nemours Foundation website. Available at: http://kidshealth.org/en/kids/blisters.html. Accessed January 29, 2021.
Major burns. EBSCO DynaMed website. Available at: https://www.dynamed.com/condition/major-burns. Accessed on February 18, 2021.
Last reviewed September 2020 by EBSCO Medical Review Board Shawna Grubb, RN Last Updated: 2/18/2021