With the exception of the groin, how is the burn measure "rule" divided percentage-wise?

The burn measurement "rule" often referenced in clinical settings is the "Rule of Nines," which divides the body surface area into sections that represent approximately 9% each. In adults, the body's different sections are assigned percentages where each limb and body part is quantified.

For instance, the head and neck account for approximately 9% of total body surface area, each arm adds another 9%, the front of the torso contributes 18%, the back adds another 18%, each leg contributes 18% (9% for the front and 9% for the back), and the groin area is typically given a percentage of about 1%.

When considering the percentages for surface area burns, the overall dividers are multiples of 9. The total for each leg is significant, comprising a major portion of the total, making 9% a key segment in this calculation. Thus, each leg's front represents a percentage that could correlate effectively with this rule from the burn assessment perspective, leading to the conclusion that 9% is an appropriate figure when evaluating burns, excluding the groin region.