estimating the size of a burn
overview
you can quickly estimate the size of a burn by using the "rule of nines." this method divides the body's surface area into percentages.
estimating burn size in adults
see a picture of the "rule of nines" for adults.
- the front and back of the head and neck equal 9% of the body's surface area.
- the front and back of each arm and hand equal 9% of the body's surface area.
- the chest equals 9% and the stomach equals 9% of the body's surface area.
- the upper back equals 9% and the lower back equals 9% of the body's surface area.
- the front and back of each leg and foot equal 18% of the body's surface area.
- the groin area equals 1% of the body's surface area.
estimating burn size in babies and young children
see a picture of the "rule of nines" for babies and young children.
- the front and back of the head and neck are 21% of the body's surface area.
- the front and back of each arm and hand are 10% of the body's surface area.
- the chest and stomach are 13% of the body's surface area.
- the back is 13% of the body's surface area.
- the buttocks are 5% of the body's surface area.
- the front and back of each leg and foot are 13.5% of the body's surface area.
- the groin area is 1% of the body's surface area.
the "rule of palm" is another way to estimate the size of a burn. the palm of the person who is burned (not fingers or wrist area) is about 1% of the body. use the person's palm to measure the body surface area burned.
it can be hard to estimate the size of a burn. if you think a burn is a certain size but you are unsure, it is best to discuss the size of the burn with your doctor.
credits
current as of: november 16, 2023
author: healthwise staff
clinical review board
all healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
current as of: november 16, 2023
author: healthwise staff
clinical review board
all healthwise education is reviewed by a team that includes physicians, nurses, advanced practitioners, registered dieticians, and other healthcare professionals.
