Prematurity (Neonatal)

What is Prematurity (Neonatal)?

Prematurity occurs when a baby is born before 37 weeks of pregnancy are complete. A full-term pregnancy lasts about 40 weeks. Babies born early may not have fully developed organs, which can lead to health challenges in their first days, weeks, or months of life.

Premature babies often need special medical care in a neonatal intensive care unit. Their bodies may struggle with breathing, feeding, maintaining body temperature, and processing waste products. The earlier a baby is born, the higher the risk of complications. Many premature babies grow up healthy, but early monitoring helps catch and treat problems quickly.

One common concern in premature infants is jaundice, which happens when bilirubin builds up in the blood. Premature babies have immature livers that cannot break down bilirubin as quickly as full-term babies. This makes monitoring bilirubin levels essential to prevent serious complications like kernicterus, a type of brain damage.

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Symptoms

Yellow tint to the skin and whites of the eyes
Difficulty breathing or rapid breathing
Trouble feeding or staying awake during feedings
Low body temperature
Weak cry or low muscle tone
Very small size or low birth weight
Little body fat or thin skin
Frequent pauses in breathing during sleep

Some premature babies appear healthy at first but develop problems within hours or days. Early and regular monitoring helps doctors spot issues before they become serious.

Causes and risk factors

Prematurity can result from many factors. Sometimes labor starts early without a clear reason. Medical conditions in the mother, such as high blood pressure, diabetes, or infections, can trigger early delivery. Problems with the placenta or carrying twins or triplets also increase the risk. Lifestyle factors like smoking, drug use, poor nutrition, and high stress may contribute to premature birth.

Mothers who have had a previous premature birth, are younger than 17 or older than 35, or have a short time between pregnancies face higher risk. Lack of prenatal care also increases the chance of early delivery. Understanding these risk factors helps healthcare providers monitor pregnancies more closely and take steps to delay delivery when possible.

How it's diagnosed

Doctors diagnose prematurity based on the gestational age at birth, which is the number of weeks since the mother's last menstrual period. Babies born before 37 weeks are considered premature. After birth, healthcare providers assess the baby's size, breathing, temperature control, and feeding ability to determine what care is needed.

Blood tests play a key role in monitoring premature babies. Bilirubin testing is especially important because premature infants process this waste product more slowly than full-term babies. High bilirubin levels can lead to kernicterus, a serious brain injury. Rite Aid offers bilirubin testing through our flagship panel at Quest Diagnostics locations nationwide. Regular monitoring helps doctors decide if treatment like phototherapy is needed to bring bilirubin levels down safely.

Treatment options

Phototherapy with special blue lights to break down excess bilirubin in the skin
Incubator care to maintain proper body temperature
Feeding support through a tube if the baby cannot nurse or bottle-feed
Breathing support with oxygen or a ventilator if lungs are not fully developed
Frequent monitoring of blood sugar, bilirubin, and other vital signs
Skin-to-skin contact with parents to help regulate temperature and heart rate
Breast milk feeding when possible, as it provides important immune protection
Nutritional supplements to support growth and development

Frequently asked questions

A baby is considered premature if born before 37 weeks of pregnancy. Full-term pregnancy lasts about 40 weeks. The earlier a baby is born, the higher the risk of health complications. Babies born before 28 weeks face the most serious challenges.

Premature babies have immature livers that cannot process bilirubin as quickly as full-term babies. Bilirubin is a yellow waste product from broken-down red blood cells. When it builds up in the blood, it causes the yellow skin color of jaundice. Without treatment, high bilirubin can damage the brain.

Kernicterus is a rare but serious type of brain damage caused by very high bilirubin levels. It can lead to hearing loss, movement problems, and developmental delays. Regular bilirubin testing helps doctors catch high levels early. Phototherapy treatment usually brings bilirubin down before kernicterus can occur.

Testing frequency depends on the baby's age, degree of prematurity, and bilirubin trends. Many premature babies need daily testing in the first week of life. Doctors use lower treatment thresholds for premature infants because their risk of brain damage is higher. Your healthcare team will create a monitoring schedule based on your baby's specific needs.

Yes, Rite Aid offers bilirubin testing through Quest Diagnostics at about 2,000 locations nationwide. Our flagship panel includes total bilirubin measurement, which is the main test for monitoring jaundice. This makes it easier for families to access testing without multiple appointments. Talk to your pediatrician about whether Rite Aid testing fits your baby's care plan.

Many premature babies grow up healthy with no lasting problems. However, very early birth can lead to developmental delays, learning disabilities, vision or hearing issues, and chronic lung disease. The earlier a baby is born, the higher the risk of long-term effects. Early intervention services and regular follow-up care improve outcomes significantly.

Hospital stays vary based on gestational age at birth and health complications. Babies born closer to 37 weeks may go home in a few days. Those born before 32 weeks often need several weeks or months in the neonatal intensive care unit. Most babies can go home once they can breathe on their own, maintain body temperature, and feed well.

Getting regular prenatal care is the most important step. Avoid smoking, alcohol, and drugs during pregnancy. Eat a balanced diet and manage chronic conditions like diabetes or high blood pressure. Space pregnancies at least 18 months apart when possible. Reduce stress and get adequate rest throughout pregnancy.

Yes, phototherapy is very safe and has been used for decades to treat jaundice. The baby lies under special blue lights that help break down bilirubin in the skin. Side effects are rare and mild, such as temporary loose stools or skin rash. The benefits of preventing brain damage from high bilirubin far outweigh any risks.

Contact your doctor right away if your baby's yellow color deepens, spreads to the arms and legs, or if your baby becomes very sleepy and hard to wake. Other warning signs include poor feeding, high-pitched crying, or arching of the neck and body. Regular bilirubin testing helps catch problems before these severe symptoms appear.