My big guy went to the doc. yesterday for his 4 year old check up ( he just turned 4 in March) he is 47 inches tall!!!! That's big for 4 yrs. right? The doc said he is going to be taller than I am (6'2") He also got 4 vaccination shots and he didn't even cry! My wife and I are so happy we have been blessed with 2 beautiful healthy children! Sorry just wanted to share , Daddy feels especially proud today!