In circle of Mom of a few pregnant, popular so a view: The value that double top diameter subtracts femur grows is more than 2, it is male treasure, the value is less than 2, it is female treasure. Simple for namely, head ham is short is the boy, head and leg differ small is the girl. Double top diameter subtracts femur grows, can see a men and women, have scientific basis?
What we see first is double top diameter. Double top diameter, it is to show fetal head controls two side between the length of the widest place, say again " diameter of head big horizontal stroke " . In our department of gynaecology and obstetrics, basically observe fetal development state of affairs with this numerical value, judge whether asymmetry of basin having a head, whether can labor smoothly.
Generally speaking, pregnant mature when, fetal double top diameter should achieve 9.3 centimeters or above. Press common law, in pregnant after 5 months, basic with be pregnant month conform to, that is to say, gravid 28 weeks, namely 7 months when, double top diameter is 7 centimeters about, pregnant 32 weeks, 8 months when, it is 8 centimeters about, with this analogize. Pregnant after 8 months, it is normal that average and weekly growth is for 0.2 centimeters about. When illative and fetal weight, also often need to measure this data.
Fetal femur is long, be in a hospital, pregnant woman makes B overtime, when B exceeds a doctor to make pregnancy check to pregnant woman, will observe the norm with fetal development commonly used state of affairs with it.
The typical length in femur human body provides shape framework, femur is the long bone with the largest human body, point to femoral.
Femoral accident, basically be with parents heredity and fetal development differ relative, these data, each fetal it is different, did not concern with the men and women. A little fetal embryo head slants big, if 30 Zhou Shi B exceed pregnant,the standard that shown double top way is pregnant 31-32 week is worth, the poor value with diameter of so double top and long femur is more than very likely 2; In addition, b exceeds medium fetal femur what the data such as diameter of long, abdominal circumference, double top reacts is fetal development circumstance, see fetal sexual distinction from these data and unscientific, pregnant Mom regard as in what be pregnant the chat after the meal is possible, took seriously really, do not have too was necessary.
