To use this feature subscribe to Mumsnet Premium - get first access to new features see fewer ads, and support Mumsnet.Start using Mumsnet Premium
My 21 month old son has a very odd habit of rubbing his dummy over his head. This results in lots of hair wrapped around the dummy. I'm not sure why he does it and wondered if anyone else had experienced similar. I'm concerned he's going to end up with a bald patch! Could it be a form of pica?