http://kidshealth.org/parent/growth/growth/failure_thrive.html
This link explains what Failure To Thrive is. Rylan has always been small since birth (5% on growth charts) but it wasn't until he was 3 years old that he stopped being able to gain weight properly he didn't gain at all for a whole year and that alone made him drop on the growth charts which is when his pedi decided that he was FTT. His height also suffered and he isn't growing like he should. He is still off the charts on height but because he is on periactin he has started to gain weight. At 4 years old just reached 31 lbs. He has been through so much. I will also be making other posts about his other health conditions he has too throughout the day.
This pic is of my 2 year old nephew and my 4 year old son. It's a good comparison to see just how small he is.
♥ Lizzy