What did the bone age say when he had it done? I know he has only had one, but I wondered how that dealt with kids who are bigger. My son is 4 now and his bone age results have always been his chronological age(even though his height and weight were about 25%)...until this year when at age 4 his results were 3 1/2 yrs. I was not real thrilled but our endo was ....saying she would prefer for him to be a bit smaller for later. He was born almost 2 weeks late and was 22 inches long and 10 1/2 pounds. I thought we would have a big guy, too. But he was very slow to grow. (He dropped to nearly 8 pounds while my idiot ped let him vomit and dehydrate.....so he had some do recover!) So..weight has not been an issue and I do worry about that suddenly creeping in.