The animal spent four days wedged tight inside the pipe outside Markinch Town Hall in Fife.
The hedgehog is recovering well after being rescued by a Yorkshire Water technician.
The RSPCA was called to Blandford Camp in Dorset after a member of the public spotted the hedgehog.
Teddy the hedgehog is sharing his weight loss journey with hundreds of thousands online.
"I thought it might be a fluffy bag or a winter hat until it started breathing," says the manager.
The Green Team gives advice on how to create garden spaces to attract native species.
Staff says demand is growing in Devon and Cornwall and more hedgehogs can now be cared for.
Researchers played a sountrack to hedgehogs to identify the frequency of sounds they can hear
Hedgehogs are surprisingly common in UK gardens, with food a powerful attraction, say scientists.
