Premature birth is how many weeks?

Written by Zhao Li Li
Obstetrics
Updated on September 19, 2024
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Under normal circumstances, embryos that develop from 28 to 40 weeks are considered viable, and babies born during this period generally have a good survival ability. However, babies born before 37 weeks of amenorrhea are generally considered premature. Therefore, babies born between 28 weeks and 36 weeks plus 6 days are considered premature. Premature babies, due to the immaturity of their organs and systems, are prone to complications. If the baby has already been born, it is recommended to actively pursue appropriate premature care and symptomatic treatment.

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Written by Zhao Li Li
Obstetrics
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Is it normal for a premature baby to weigh more than five jin?

If the newborn is currently premature and weighs a bit over five jin (approximately 2.5 kilograms), it is generally considered within the normal range. Typically, if a newborn weighs more than 2500 grams, it is considered a full-term birth weight and there are no abnormalities. Therefore, if the newborn's weight is within the normal range after birth and there are no abnormalities in the development of the organs, it is possible to observe temporarily without the need for an incubator. It is also crucial to closely monitor the various vital signs of the newborn and pay attention to normal feeding and care.

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Written by Du Rui Xia
Obstetrics
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Is prematurity prone to jaundice?

Premature infants often exhibit jaundice. This is because during premature birth, the baby's gas distension function is not yet perfect, the liver's detoxification capabilities are relatively weak, and the ability to process bilirubin is poor. Therefore, jaundice easily occurs, and the physiological jaundice in premature infants is more severe compared to full-term infants. Due to the reduced sucking ability and swallowing reflex in premature infants and their underdeveloped intestinal function, most babies cannot be normally breastfed after birth. The increased absorption of bilirubin in the intestines exacerbates the jaundice in premature infants. It is advised for premature infants to initiate breastfeeding as soon as possible and some medications can also be used to promote liver enzyme activity.

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Written by Zhang Lu
Obstetrics
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What are the signs of premature birth?

Preterm birth refers to delivery occurring between the 28th and 36th week +6 days of pregnancy. Firstly, it is advised to prioritize prevention and identify the symptoms of preterm labor as early as possible to allow for early treatment. Signs of preterm labor include the following aspects: First, the occurrence of regular contractions, such as 4 contractions within 20 minutes or 8 contractions within 60 minutes, with each contraction lasting more than a minute; second, the appearance of a small amount of bloody show, which is a sign of imminent labor; third, many times pregnant women will experience a significant feeling of heaviness. Upon examination, cervical dilation and a shortening of the cervical canal may be found. When these symptoms appear, it is important to rest in bed promptly and undergo treatment with medications.

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Written by Liu Wei Jie
Obstetrics
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What is the earliest gestational week that a premature baby can survive?

Preterm infants, how many weeks can survive, first let's talk about the concept of preterm birth. The concept of preterm birth is more than 28 weeks but less than 37 weeks, this is called premature birth. However, with the improvement of neonatal resuscitation technology, in China, if it’s after 26 weeks, the vast majority of newborns can also survive. But after survival, the cost is quite high. For instance, if it's in a top-tier hospital, the cost for newborns born between 26 and 28 weeks can be around several hundred thousand yuan. So, even after some medical insurance policy reimbursements, you would still have to spend around tens of thousands of yuan on your own.

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Written by Du Rui Xia
Obstetrics
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Can premature birth be natural delivery?

Whether a vaginal delivery is possible in the case of preterm labor depends on the condition of the pregnant woman and the fetus, including the woman's birth canal, labor strength, the size and position of the fetus, among other factors. Generally, during a medical visit, a doctor will measure the woman's pelvis to roughly determine whether vaginal delivery is feasible. Women who experience preterm labor should go to the hospital for timely medical care and choose a hospital equipped for emergency services. If preterm delivery occurs, the baby's respiratory function may be relatively weak, necessitating the use of special equipment to assist breathing.