Premature birth is how many months?

Written by Yue Hua

Obstetrics and Gynecology

Updated on September 17, 2024

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Preterm birth refers to a newborn born between 28 and less than 38 weeks of pregnancy. Moreover, at this time, the heart size is generally more than 1000 grams. There are many reasons for this occurrence, most of which are related to intrauterine infection in pregnant women, such as patients with premature rupture of membranes or chorioamnionitis are prone to preterm birth. Additionally, if there has been a previous pregnancy, abortion, with a short interval between them, or if an ultrasound detects that the cervical length is less than 25 millimeters, there is also an increased likelihood of preterm birth.

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Written by Du Rui Xia

Obstetrics

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Does premature birth affect intelligence?

Premature birth generally does not affect a baby's intellectual development, as the brain is mostly well-developed by the time of premature birth, and intelligence is not greatly affected. With appropriate nutrition post-birth, the intelligence of premature babies can generally recover to that of average children. However, if the baby experiences intrauterine hypoxia during premature birth, this can affect the brain cells and may even lead to cerebral palsy. Therefore, it is important to closely monitor the baby's diet and neurological responsiveness if premature birth occurs. If there are concerns, a hospital check-up can be conducted to promptly identify any issues with the child.

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Written by Liu Wen Li

Obstetrics

55sec

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Premature birth: Cesarean section or natural delivery?

Whether to opt for cesarean or vaginal delivery for preterm birth needs a comprehensive grasp of the pregnant woman's entire condition before assessing and deciding on the mode of childbirth. First, it's necessary to check if the woman has any complications and the severity of these complications, as well as whether her physical condition allows for vaginal delivery. Additionally, the changes in fetal heart rate must be considered. If the fetal heart rate is particularly poor, and the duration of vaginal delivery is long such that the child cannot endure it, then a cesarean section may be needed. Beyond these conditions, it is also important to evaluate the state of the pelvis, the size of the fetus, and the condition of the cervix. Generally, if vaginal delivery is possible for preterm births, it is still encouraged.

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Written by Liu Wen Li

Obstetrics

52sec

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Does placenta previa cause preterm birth?

Placenta previa is likely to lead to premature birth. Why is that? Placenta previa refers to the condition where the placenta is positioned lower in the uterus, and the most common symptom is recurrent, painless bleeding during pregnancy. This is because the low-lying placenta often leads to frequent bleeding. If the bleeding is minimal, there is still hope to maintain the pregnancy, allowing the fetus to grow longer inside the uterus. However, in the event of heavy bleeding, if the baby remains in the uterus without delivery, a critical situation can arise due to blood loss, potentially leading to the disappearance of fetal heart activity. At this point, the pregnancy would need to be terminated, thus often resulting in premature birth.

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Written by Zhang Lu

Obstetrics

1min 2sec

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Premature birth is how many weeks?

Premature birth refers to childbirth occurring before full-term pregnancy. In contrast, the terms miscarriage, full-term birth, and post-term birth are used, differentiated mainly by the gestational weeks. Miscarriage refers to the expulsion of a fetus before 28 weeks of pregnancy, premature birth refers to expulsion between 28 and 36 weeks plus 6 days, full-term birth refers to expulsion between 37 and 41 weeks plus 6 days, and post-term birth refers to expulsion after 42 weeks of pregnancy. The definition of premature birth being set between 28 and 36 weeks plus 6 days mainly stems from the fact that during this time period, the fetus already has a significant chance of survival. However, the overall survival rate is lower than that of a full-term birth. It is crucial to promptly treat the newborn in cases of premature birth, while also preventing complications in the mother.

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Written by Du Rui Xia

Obstetrics

52sec

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Is placenta previa likely to lead to preterm birth?

Placenta previa refers to the condition where, after 28 weeks of pregnancy, the placenta reaches or covers the internal opening of the cervix. There are multiple causes for placenta previa, and its occurrence does not necessarily lead to preterm birth. Clinically, placenta previa mainly results in irregular vaginal bleeding, which increases the risk of preterm birth. Therefore, it is recommended that regular prenatal visits be conducted at a hospital when placenta previa occurs. Treatment measures should be taken based on the specific condition of the placenta, and treatment to preserve the pregnancy may be necessary at times. In cases of placenta previa, it is advisable to rest in bed as much as possible and avoid strenuous activities.