Head Circumference - too small?

Jack was 35cm HC when born and I think 47cm at 5 months, so it seems relatively normal to me. I guess it may differ because of them being different genders, but Jack's always been average to above average for head size. I think with things like that (I know they do with growth of other areas anyway) they are usually looking at the RATE of growth, so if that has dipped down then maybe that's why the doc wants to measure her again.

Hope all is well though, I know from experience (Jack struggled with putting weight on and was always dropping his rate of growth) that the stats can become quite stressful, but I'm sure they're just being cautious. If she's developing well then there shouldn't be anything to worry about, but glad you've got a doc who errs on the side of caution rather than one that doesn't give two hoots

Joel was 35cm at birth and 44cm at 5m, so ours is in line with yours and nothing was said to me. I'm sure she is doing fine.

Don't actually have Leahs at birth (hopeless effing mw at the time) but at 4 weeks it was 36.5cm (3.5 weeks early) and at 5 months 42.4cm and nothing was said then either.

just checked Ella plunket book and at birth her head circ was 34cm and at 5 months 42cm and my nurse never had any concerns- she just has a small head (which makes sense as I do to and can still wear kids hats).

Just looked at Isla's wellchild book out of curiosity (cos Im procrastinating) and her HC at birth was 37cm (thats at least 2 cm bigger than everyone else thats posted,- can anyone say BIG HEAD! ) and 42cm at 5 months.