Hong Kong male and female identification, early to know the baby's gender

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r Maternal blood test: It is obviously safer and faster to determine the gender of the fetus based on the fetal fragments in the mother’s blood. Scientists can actually detect the fetus in the blood samples of pregnant women, and as the fetus continues to grow, the concentration will become higher and higher, reaching a peak in the weeks after conception, so the accuracy rate also reaches 10%.

rNow there are stages of gender identification in Hong Kong: 1. Blood collection at the full week of pregnancy. At this stage, the fetus is relatively small, and the concentration of fetal information emitted is low, so more precise and sensitive technology needs to be used. 2. Blood testing is done at or above the full week of pregnancy. The fetal information reaches the highest value in the maternal blood and maintains a balance. At this time, the test is more sensitive and the positive result is stronger. Due to the different procedures and methods of gender testing, weekly gender testing is slightly more expensive than weekly gender testing. However, the accuracy of weekly and weekly tests is the same, and both can reach %. What conditions need to be met to do a Hong Kong blood test to identify the gender of the fetus? 1. It must be confirmed by B-ultrasound that the gestational age is one week or more, and that the fetus is normal and has a embryo. , fetal heart, pulse beat. 2. No male fetus has been delivered within one year, and no male fetus has been aborted within one year (if the abortion is a female fetus, it will not be affected). 3. No blood transfusion, major surgery, or organ transplant has been performed within half a year. 4. The blood type is B type (that is, any one of B, B, and B blood types is acceptable)