Baby weight drop by 2 centiles at 4 month

[TheEdgyDreamer]

My son was born at 4kgs at birth and was 75 percentile. Now,at 4 months he is 6.3kgs and at 17 percentile

His height is 64cm. Should I be worried about his weight? I was told by the doctor that it's fine but I'm getting really concerned

How tall are you and DH? Is feeding going well? Plenty of wet and dirty nappies? Baby alert during wake windows?

Some babies will be born big because of factors during pregnancy but if mum and dad aren’t tall, then because eventual height is primarily influenced by genetic factors, baby will ‘catch down’ and drop down the centiles before they land where they’re supposed to be. My nephew was 11lbs at birth (almost 2 weeks late and undiagnosed GD) but mum is v petite and Dad average height so he was never going to stay on the 99th percentile. He dropped right down, caused a lot of worry, but he was just finding his curve and is now a very healthy teen of average height!

I'm 5'3 and my DH is 5'10. DS is breastfeeding mostly except 1 formula feed during the day. He is quite alert and meeting all developmental milestones so far. He's producing lots of wet nappies but he's pooping only once in 2/3 days.

My dd did exactly this. Went from 24th to below the 0.4th. Also breastfed.

we were referred to paeds and given some bf advice. Paeds checked her over , did some measurements, and said she was fine, that a lot of babies “catch down” as pp said.

best advice I got was from my hv. He said forget the numbers and the charts- as long as baby isn’t losing the numbers don’t matter. He advised to use your eyes- look at your baby. Do they look healthy? Kicking, active, meeting milestones? Smiling, crying, sleeping? Good colour, shiny clear eyes? If your eyes tell you your baby is healthy it is likely they are- sick babies get sicker very quickly.

I'll third the suggestion that this may be him 'catching down'. It looks like most of the drop in centiles was in the first few weeks, and the last two measurements are roughly around the 25th centile. That's well within the range of what would be expected given parental heights. As long as he's well in himself, I'd try not to think about it for a couple months, then get him weighed again to see if he's now following a centile (more or less), or if he's still drifting downwards.

DD1 seemed to be drifting down and down, enough to eventually get reviewed by paeds – of course between referral and appointment, she had a major growth spurt, went up a centile line, and has more or less followed that line since.