From the moment of pregnancy, women are very eager to know whether they are carrying a boy or a girl, so there are many methods of self testing fetal gender in Chinese folk culture. In fact, these methods have no scientific basis. As a pregnant woman, do not believe in these methods, just treat them as entertainment. In fact, there are five scientific methods for detecting fetal gender, which will be introduced one by one in this article.
1. DNA blood draw
A gene called 'SRY' only exists on the Y chromosome, and once its presence is detected, it means that the fetus is male. This examination method can be performed 5 weeks after conception, but there is currently no technical support for it in China.
2. B-ultrasound
On ultrasound images, the male genitalia appear in the shape of a pot handle, while the female genitalia appear in the shape of petals. Even experienced doctors may make mistakes in recognition, The accuracy of B-ultrasound diagnosis is only about 85% to 90%, and it can generally be detected after the fetus is 4 months old. Ultrasound is a type of sound wave, and reports so far have shown that it has no adverse effects on fetuses, making it widely used in the obstetrics and gynecology industry. When using ultrasound to diagnose fetal gender, the accuracy of male infants can reach over 95%, while the reliability of female infants is only about 85%.
3. Amniocentesis
At 15 weeks old, every milliliter of amniotic fluid contains nearly 10000 fetal cells. By extracting these amniotic fluid cells and conducting chromosome analysis, the gender of the baby can be determined. But this is an invasive examination method that carries the risk of trauma and is specifically designed to screen for fetal health issues in elderly mothers and families with a family history of genetics. It carries certain risks and may cause fetal miscarriage and other conditions that are inherently problematic. Therefore, this test must be performed by experienced physicians in formal hospitals, and doctors can handle any subsequent issues that may arise. Therefore, using amniocentesis for fetal gender examination is not advocated and not scientific. The medical community does not approve of performing amniocentesis solely for the purpose of determining fetal gender.
4. Chorionic villus biopsy
The chromosomal karyotype of trophoblast cells is consistent with that of embryos. This method can achieve an accuracy of over 90%. Although chorionic villus biopsy can determine the gender of the fetus around 10 weeks of pregnancy, it may cause miscarriage (3% to 5%) and may also harm the fetus. Causing damage to their hands and feet. Therefore, it is best not to undergo this test solely for the purpose of determining the gender of the fetus.
5. Rinse the uterus with physiological saline solution
This is a more practical method among similar methods in recent years, usually performed at 9 weeks of pregnancy. So far, it has been confirmed that the safety is quite high, with a reliability of 98%. But this type of examination can only detect males and females, and cannot determine whether the fetus's chromosomes are normal. Sexual activity is not allowed within one week before the examination to reduce errors.
Through the introduction of this article, it can be known that the method of self testing fetal gender is not advisable. It is illegal to test the gender of a fetus in China, so doctors will not tell you the gender of the fetus. In fact, the current level of technology is fully capable of detecting fetal gender. You can choose to refer to the five methods introduced in this article.
