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 Du Rui Xia
Obstetrics
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What are the signs of premature birth?

After 29 weeks of pregnancy, if the baby is born prematurely, it is called preterm birth. When preterm labor occurs, there are some early signs, mainly manifesting as the onset of abdominal pain, which is persistent and gradually worsens. Additionally, due to the contraction of the uterus, the abdomen becomes hard and localized muscle tension occurs, leading to a feeling of swelling. Moreover, when the amniotic fluid ruptures, the pregnant mother will feel a flow of liquid from the vagina and there will be an increase in intestinal activity compared to usual, along with some abnormal vaginal discharge. These are some of the signs of preterm labor.

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Written by Zhao Li Li
Obstetrics
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Is premature birth prone to cerebral palsy?

Under normal circumstances, not all preterm infants will develop cerebral palsy. Preterm babies are more susceptible due to their immature organ systems compared to full-term babies. If they face poor adaptation to the environment during or after childbirth, it can increase the likelihood of developing cerebral palsy. However, this does not mean that cerebral palsy will occur in all cases. Furthermore, since the brain development system is not fully mature in preterm infants, conditions such as brain hypoxia may occur, which can affect the brain and contribute to the development of cerebral palsy.

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

Preterm birth refers to delivery between 28 and 36+6 weeks of pregnancy. Due to the lighter weight and lower maturity of the fetus at this stage, the survival rate of newborns is often reduced. The causes of preterm birth include the following aspects: First, the presence of vaginal inflammation can easily lead to premature rupture of membranes, which in turn triggers contractions and can lead to preterm labor. Second, in twin or multiple pregnancies, the increased irritability of the uterine wall can easily cause spontaneous contractions, which in turn lead to preterm labor. Third, an excess of amniotic fluid can increase the pressure inside the amniotic cavity, easily stimulating spontaneous uterine contractions or premature rupture of membranes. Additionally, if the cervical canal is congenitally short, or if there has been previous cervical surgery, this can also easily lead to preterm labor.

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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.

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Written by Du Rui Xia
Obstetrics
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What should I do if a premature baby spits up milk?

For premature babies who experience spitting up, first pay attention to the feeding position. During feeding, make sure to hold the baby up with their head higher than their buttocks, which facilitates the smooth passage of milk through the gastrointestinal tract. Additionally, if the baby vomits, first pick the baby up and gently pat their back to help release some of the residual gas in the stomach, which can reduce spitting up and vomiting. Also, during feeding, be mindful not to feed too much at once; feeding small amounts more frequently can also help prevent spitting up.