How to judge whether the fetus is normal
During pregnancy, the health of the fetus is every expectant parent's biggest concern. How to determine whether the fetus is developing normally? This article will provide you with structured data and analysis from three aspects: medical examination, pregnant women’s self-observation and daily precautions.
1. Medical examination items and their significance
| Check items | Check time | normal indicator | Abnormal risk warning |
|---|---|---|---|
| NT check | 11-13 weeks pregnant | NT value≤2.5mm | Risk of chromosomal abnormalities |
| Down syndrome screening | 15-20 weeks pregnant | low risk | Trisomy 21/18 |
| B-ultrasound of large abnormality | 20-24 weeks pregnant | All organs are fully developed | Structural deformity |
| Fetal heart rate monitoring | After 32 weeks of pregnancy | 120-160 times/minute | Risk of hypoxia |
2. Key points for self-observation of pregnant women
1.fetal movement monitoring: After 28 weeks of pregnancy, normal fetal movement is 3-5 times per hour. If it is less than 20 times in 12 hours, you need to see a doctor.
2.weight gain: The ideal weight gain range during pregnancy is shown in the table below:
| Pre-pregnancy BMI | Recommended weight gain range |
|---|---|
| <18.5 | 12.5-18kg |
| 18.5-24.9 | 11.5-16kg |
| ≥25 | 7-11.5kg |
3.Abdominal pain and bleeding: Persistent abdominal pain or redness may indicate threatened miscarriage.
3. Daily precautions
1.Nutritional supplements: Folic acid (3 months before pregnancy to 3 months of pregnancy), iron (need to be supplemented when hemoglobin is <110g/L).
2.Risk factor avoidance:
| risk factors | influence |
|---|---|
| Smoking/second-hand smoke | Risk of low birth weight ↑40% |
| alcohol | fetal alcohol syndrome |
| Caffeine＞200mg/day | Risk of miscarriage ↑25% |
3.Frequency of prenatal care: Once every 4 weeks before 28 weeks of pregnancy, once every 2 weeks from 28 to 36 weeks of pregnancy, once a week after 36 weeks of pregnancy.
4. Latest research data (hot spots in the past 10 days)
| research sources | discover |
|---|---|
| "American Journal of Obstetrics and Gynecology" | Vitamin D levels >30ng/ml in the second trimester may reduce the risk of premature birth |
| National Health Commission data | The incidence of birth defects drops to 5.6% in 2023 (7.2% in 2012) |
5. Expert advice
1. When an abnormality is discovered,Avoid network self-diagnosis, should seek medical treatment promptly.
2.3D/4D color Doppler ultrasoundFor non-essential examination items, conventional two-dimensional ultrasound can meet the screening needs.
3. keepEmotionally stable, excessive levels of stress hormones in pregnant women may affect fetal neurodevelopment.
Through standardized prenatal examination, scientific self-monitoring and a healthy lifestyle, the vast majority of fetuses can develop healthily. It is recommended that expectant parents regularly attend hospital maternity schools to acquire the latest knowledge and achieve scientific pregnancy.
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