My son has been wearing a medtronic pump for 3 years (he is 7 years old). We have exclusively used his rear for pump sites and have had no problems. I recently tried to push to move his pump site to another location. His dad wears his pump sites exclusively in the stomach, so I thought that would be a good place to try. He is very thin, but my husband and I thought we could give his stomach a try. He already wears a dexcom receiver on his upper arm, so that is not an option. Last night we did our first insertion in the stomach. It was a little uncomfortable at first, but everything seemed to be fine. During the night his blood sugar steadily climbed; by the time I finally got up he was at 423! I went ahead and put a site back on his rear-end and blood sugar was back down to the 100s this morning. Has anyone FAILED at stomach sites with a skinny kid? Any other possible site locations?