Well, I came onto this board a little over a month ago with a similar questions, except, I was asking if CAH was a contributing factor to an "overly-healthy" child. Through the responses of the readers, I have learned that CAH children come in all shapes, sizes etc... just like the rest of us! Good luck with the little guy. My non CAH carrying son is on the lean side, while my daughter who has CAH is on the larger side! One question to you, did you give your grandson the Cortef shot when he broke his arm? How did you/he handle the situation? This is a VERY big fear of mine.