Good morning! My son is new to the pump and I had a question about what makes a site 'bad'. For the second time, he woke up with a really high number after going to bed in range. This morning it was 450. Yowsa. Today is site change day but we normally change after school. So I corrected him via shot and changed his site. This time he saw a little insulin around the site but the last time, no signs of insulin leakage. So my question is this..what makes a site bad? I know a kinked cannula at insertion can do that but what about when you are 2 or 3 days into a site? The first time I thought maybe he slept on his tubing but this time..I am wondering if heat is to blame as he was outside a bunch on Saturday and it was crazy hot. Why is 3 days the magical number for site changes? What makes a site start to act wonky? Thank you!