How can you tell if a child is a boy or a girl? Uncovering the secrets of scientific methods and folklore
Having a boy or girl has always been a topic of concern to many expectant parents. With the development of science, people have a deeper understanding of gender judgment methods, but there are still many unconfirmed claims among the people. This article will combine hot topics and hot content in the past 10 days to provide you with a structured analysis of scientific methods and folk rumors to help you view gender judgment rationally.
1. Scientific method to determine whether a child is a boy or a girl

Modern medicine provides several relatively accurate gender determination methods, which are mainly achieved through technical means. The following are common scientific methods:
| method | Principle | Accuracy | Applicable time |
|---|---|---|---|
| B-ultrasound examination | Seeing fetal reproductive organs through ultrasound imaging | More than 90% (after 16 weeks of pregnancy) | After 16 weeks of pregnancy |
| Non-invasive DNA testing | Analysis of fetal DNA fragments in maternal blood | More than 99% | After 10 weeks of pregnancy |
| amniocentesis | Extraction of fetal cells from amniotic fluid for chromosome analysis | More than 99% | 16-20 weeks pregnant |
2. Judgment methods of folklore
Despite the lack of scientific basis, there are still many folk opinions about determining the gender of the fetus. The following are several methods that have been discussed frequently on the Internet recently:
| method | Judgment basis | Credibility |
|---|---|---|
| Qing Palace Table | Calculated based on maternal age and conception month | No scientific basis |
| pregnancy belly shape | Men have pointed bellies, and women have round bellies. | No scientific basis |
| Pregnancy reaction | A strong reaction is a female, a slight reaction is a male. | No scientific basis |
| fetal heart rate | If it’s higher than 140 times/ it’s considered female, if it’s lower than 140 times/ it’s considered male | No scientific basis |
3. Analysis of recent hot topics
In the past 10 days, discussions about having a boy or a girl have mainly focused on the following aspects:
1.Ethical controversies about gene editing technology: With the development of gene editing technologies such as CRISPR, some people have proposed that the gender of the fetus can be artificially selected, which has triggered extensive ethical discussions.
2.Gender preference of the two-child policy: In some areas, the gender preference of parents of second-born children has become the focus of social attention, and some families prefer "having both children."
3.Gender identification black industry chain: Although the law prohibits non-medically necessary fetal gender identification, there are still underground agencies providing such services, and multiple cases have been exposed recently.
4. Treat gender judgment rationally
1.Limitations of the scientific method: Even medical methods have errors, and most methods can only be performed at a specific gestational age.
2.unreliability of folk methods: These methods are mostly derived from experience summaries, lack scientific verification, and are more entertaining than practical.
3.concept of gender equality: Modern society advocates gender equality. Boys and girls should receive equal care. Excessive attention to gender may bring unnecessary pressure.
5. Expert advice
1. Based on the examination results of formal medical institutions, do not trust information from non-professional channels.
2. Paying attention to fetal health is far more important than gender. Regular prenatal check-ups are the most important task during pregnancy.
3. Maintain a rational attitude towards folk opinions and avoid incorrect judgments that may affect your emotions during pregnancy.
4. Abide by relevant laws and regulations and do not participate in illegal gender identification activities.
In short, having a boy or girl is the result of natural selection. Modern parents should pay more attention to how to provide a good growth environment for their children instead of being too obsessed with gender. The concepts of scientific parenting and equal education are the core that contemporary families should pay attention to.
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