My son is 3 years old, but he's the size of an average 2 year old (he's about 89 cm tall). All along, he's been 1 or 2nd percentile in length on the growth chart. Weight-wise, he's been between the 10th to 40th % lines (closer to 40th% recently). According to the mid parental height, he should be along the 25th%, not the 1-2%. He's also got a large head circumference (always been on the 50th % line), high weight to length ratio, and some snoring/nosebleeds/chronic bad breath problems.