Others have mentioned the theory behind induction for measuring small for gestational age (SGA). It needs to be pointed out that SGA does NOT necessarily mean Intra-uterine Growth Restriction (IUGR)....some babies are just small, no problems. But it can be very difficult to know the difference, and ultrasound late in pregnancy is famously inaccurate in predicting baby's actual weight. In the last year I've known 2 women whose docs told them 'it's safer to induce ASAP because baby is so small and could be in danger due to lack of adequate nourishment in the womb. It will be better for baby on the outside where we can help'. In both cases, the babies were more than 2lbs bigger than u/s indicated, and not at all in danger.<br><br>
Luckily, both families opted to wait for labor, and had fine natural births, healthy moms and babies <img alt="" class="inlineimg" src="http://www.mothering.com/discussions/images/smilies/smile.gif" style="border:0px solid;" title="smile"><br><br>
Fundal height is not a reliable measurement, by the way. I've seen women who never got past 34 centimeters fundal height, go on to have 8lb babies. I've seen women measuring several cms large, go on to have average size babies (7ish pounds). Many factors influence fundal height measurements--including mom's height and build, amount of amniotic fluid, other... I would trust the manual palpation estimation of someone with experience in guesstimating growth and size of babies this way, FAR more than I would trust fundal height combined with u/s results.<br><br>
We are in the middle of an induction epidemic, fueled by doc's increasing fear of lawsuits. I am very skeptical of all these 'need to induce' theories currently proliferating.