October pregnancy is a happy and painful thing for all mothers-to-be. Because the development of the fetus in the belly will make the mother-to-be worried, especially in the late stage of pregnancy. Is the fetus mature? How to detect whether the placenta is aging? How do we read it? Placental maturity gradingThe maturity of the placenta can be divided into four grades, namely: grade 0, grade 1, grade 2 and grade 3.Grade 0 generally refers to the mother-to-be’s mid-pregnancy, which is about 12 weeks to 28 weeks of pregnancy; grade 1 is the mother-to-be’s late pregnancy, which is about 30 weeks to 32 weeks of pregnancy, and the placenta is about 30 weeks to 32 weeks of pregnancy. -The placenta at this time marks the basic maturity of the placenta; level 2 refers to the placenta after 36 weeks of pregnancy, marking the placenta more mature; level 3 refers to the placenta after 38 weeks of pregnancy, marking the placenta has matured and began to age, due to calcification and fibrous deposits, so that the placenta’s ability to transport oxygen and nutrients is reduced, and the fetus baby is always at risk. The baby is at risk at any time. The more mature the placenta, the better The more mature the placenta, the better. Depending on the trimester you are in, it is good to have the appropriate level of placenta maturity because the placenta is the key to supplying nutrients to the fetus. Premature maturity of the placenta means that the placenta is aging fast, which may lead to insufficient oxygen supply to the baby, and may even result in delayed growth and development of the baby. By late pregnancy, the placenta basically tends to mature. If the placenta is found to have entered grade 3 before the 37th week of pregnancy, and combined with the value of the biparietal diameter and the estimated weight of the baby at 2500 grams, the mother-to-be should be alert to the premature maturity of the placenta. There is another phenomenon that you must pay attention to. The longer the pregnancy goes beyond the due date, the more likely it is that the placenta is aging. If the placenta is aging, the amount of nutrients and oxygen provided to the baby will be greatly reduced, which will easily cause the baby to suffer from oxygen deprivation. Severe cases may cause the baby to develop brain lesions in the future, or increase the rate of suffocation. How to determine the aging of the placenta to see if the placenta level exceeds the gestational month Usually, it is normal for the placenta maturity to be at level 2 and 3 when the pregnant mother is nearly full term. However, if the placenta reaches level 2 maturity around 20 weeks of pregnancy, or level 3 maturity around 35 weeks of pregnancy, it indicates that the placenta is decompensating. To measure whether the function of the placenta is decreasing or not, which is often referred to as “aging of the placenta”, it mainly depends on whether the developmental maturity of the placenta has exceeded the gestational month. At this point, I suggest that the mother-to-be should closely count the fetal movement, monitor the fetal heart, check the amniotic fluid, and if necessary, use medication to induce labor, so as to avoid adverse effects on the baby.Ultrasound examination of the calcification point doctor through the ultrasound can determine the maturity of the placenta, mainly through the placenta on the calcification point. For example, if the calcified spots are scattered, the diagnosis is grade 2, and if the calcified spots are grouped together, the diagnosis is grade 3. However, this is somewhat subjective, and some doctors may see it as a grade 3, while others may only see it as a grade 2. So, what is the best way to diagnose placental aging? Many mothers-to-be and experienced mothers advise that an ultrasound should be done by an experienced doctor to see the calcified spots of the placenta. In addition, it is also necessary to look at the amount of amniotic fluid, ultrasound to see whether the umbilical artery blood flow rate is normal or not, fetal heart monitoring, urine examination of the ratio of estriol and creatinine, checking the vaginal wall for decidualized cells and so on. All of these can reflect the condition of the placenta and must be considered together to confirm the diagnosis. Why does placental aging occur in pregnant mothers with comorbidities? In addition to overdue pregnancy, pregnancy complications such as gestational hypertension, diabetes mellitus, kidney disease, etc. may be present. These can lead to a decrease in blood supply to the placenta and accelerate placental aging. Pregnant mothers must have regular checkups and improve relevant tests early to prevent accelerated placental aging. A little inattention, it is easy to placental blood vessels are prone to narrowing, spasm, fetal babies may be chronic hypoxia, not only small development, there is a risk of miscarriage, stillbirth, and even threaten the mother’s life.