@zhet1c google says that average is 148.9
which is a lie, going into the actual article says 149 was what the average was 70 years ago.
current average is around 158.
but i don't see a standard deviation, so can't really say how far from the norm Urushi is
Maybe she has a Turn syndrome. It’s one of the causes of shortness for women. It’s a monosomy on the X chromosome (only one copy of it ) on all or some of the cells. They are often infertile among other problems.