Sensory issues are common amongst children on the autistic spectrum and one of the most obvious places is in the mouth. Some children need extra sensation there while others have a very low tolerance. Either way, it causes problems. The Need for Extra Sensation My youngest son was always putting objects into his mouth as a baby. In fact, it's something that he still does most of the time now, aged six. It wasn't just food that interested him, it was wallpaper - which he ate at night from the walls nearest his cot. It was toys and stones and bits of fluff too. My wife used to have to watch him closely all the time becuase he'd often start choking and have to be rescued. The sensory needs were so overwhelming though that no sooner had he spat out the object he was choking on then he would start eating it all over again. On the first Christmas we had after he could sit up, we had to unplug the lights on the Christmas tree because he kept trying to mouth them. Later on,