If you strong
Carefully enter a thermometer into back pass of the child, slightly pushing that he found to himself the road.
If you strong hold the thermometer, it can rest against a wall of a gut and hurt the child.
Then put a palm on the child's buttocks, holding the thermometer with two fingers, as a cigarette.
More senior child it is possible to put sideways on a bed and to ask it to tighten feet.
When the child lies on a stomach, it is more difficult to find its back pass.
The most uncomfortable position of the child when he lies on a back, having raised feet.