A few months pregnant know how sex, pregnancy can gauge the marital sex? have got rid of sexism and shackles, only child health, but there are still some single pulse danchuan family, the older son to inherit the family expectations of incense, I hope that the time can grasp the sex of the fetus.
So how long can detect gender pregnant? around contacts, there are ways, how long can detect gender pregnant? in this case, the answer with the Hong Kong doctors tell you want to know the answer. Maybe around friends tell you how long the pregnant measure baby sex "answer is trustworthy, but may not be the most accurate, the accuracy of up to a maximum value.
How long can detect the sex of pregnancy, pregnancy long how to know sex? at present, the obstetrician available to determine baby sex method, practical and reliable comparison of the following four methods: 1, DNA tests: pregnant through b-confirm the full eight weeks, the fetus normally can detect baby sex, accuracy is 98% of the pregnant woman and the fetus has no effect. Amniocentesis: 2, primarily for diagnosis of baby chromosomal aspects or whether there is a neural tube defect, usually in 16-20 weeks pregnant. Up to 99% accurate, but there is a 1% chance of miscarriage. 3. jianshu: cashmere in mining in 12 to 14 weeks to determine baby sex, but it may cause abortion (3% to 5%), may also cause harm to the fetus, its limbs broken. 4, ultrasound scanning: ultrasound is a sound, it has no adverse effects on the fetus, infant must be 3 to 4 month accuracy. Ultrasonic diagnosis of baby sex, baby accurate up to 95 percent, baby reliability only 85 per cent.
Traditional methods of prenatal diagnosis (amniocentesis and chorionic villi mining jianshu, b-scan) need a long period of pregnancy, and the pregnant woman and the fetus has a trauma, may cause 1%-5% of the abortion rate, we generally do not advocate. In recent years, there were maternal baby cells in and baby DNA is an indisputable fact. Using maternal blood samples from maternal plasma or serum baby DNA in the baby sex identification be studied abroad and Hong Kong are already very mature, the pregnant woman and the fetus does not have any risks. We apply real-time quantitative polymerase chain reaction after 8 weeks of normal maternal blood is SRY gene detection, determine early in pregnancy and baby DNA concentration range, to detect the number of times the SRY is greater than 3 of the results of baby sex.
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