Criteria ANS
From before birth to the first 5 months after birth, the client appears to be normal and well.
The client has normal head size (as measured by circumference) at birth.
Between 5 to 48 months after birth, the client's head stops growing or grows very slowly.

Between 5 to 30 months after birth, the client stops using her hands normally. She begins to move her hands strangely, often twisting or appearing to wash her hands.
5 months or more after birth, the client begins to avoid social contact.

5 months or more after birth, the client seems to lose control of her body. She begins to move very clumsily and may not even start to walk.

The client does not develop speech or develops only primitive and distorted speech.
probably NOT Rett's Disorder