A doctor that specialises in children is called a paediatrician. The doctor who specializes in diabetes is a nephrologist.
That would be a pediatrician.
pediatrician
Dr. Barnardo was the name of the doctor in the book "Street Child" by Berlie Doherty.
The World War Two child with the gas mask was called the "Empty Child".
The Empty Child and The Doctor Dances
November 23rd 1963. William Holden stared as "the Doctor" and the launch transmission was called "An Unearthly Child".
A doctor should be called if an elderly or disabled person is constipated for a week or more or if a child seems to be constipated.
Just like any other doctor, I am sure you will at some point.
23rd November 1963, called the unearthly child :)
Take him to the doctor. If he's a child he can have something called polyps which is removed by surgery. If he's an adult it can lead to sleep apnea etc.
"The Unearthly Child" was the first named episode, there was a pilot episode before it.