Quote Originally Posted by Dorkus
Public health buildings are double edged swords. They improve order (NOT squalor), but they also increase pop growth, which is a bad thing if you are concerned with squalor-induced order problems. Consequently, I never build them.
They are however good way to stimulate growth in a city whose population has stopped increasing. If later you run into problems with civil order/run away population growth you can demolish the public health building.

They also reduce a cities chance of suffering from plague and reduce the severity and duration of a plague if it should strike.