Myxedema

                     Rule of Nine is a method of estimating the extent of burns, expressed as a percentage of total body surface. It is also known as Wallace Rule of Nines. In this method, the body is divided into sections of 9 per cent, or multiples of 9 per cent.

In Adult :
1. Head & Neck ---------------------> 9%
2. Front of trunk --------------------> 18%
3. Back of trunk ---------------------> 18%
4. Front of upper limbs ------------> 9%
5. Back of upper limbs -------------> 9%
6. Fronts of upper limbs -----------> 18%
7. Back of lower limb ---------------> 18%
8. Perineum --------------------------> 1%

In Adult

In children :
1. Head & Neck ---------------------> 18%
2. Front of trunk --------------------> 18%
3. Back of trunk ---------------------> 18%
4. Front of upper limbs ------------> 9%
5. Back of upper limbs -------------> 9%
6. Fronts of upper limbs -----------> 14%
7. Back of lower limb ---------------> 14%

In Child