Health Issues Premature Infants Often Face

When a baby arrives before 37 completed weeks of pregnancy, parents often find themselves navigating a world of unfamiliar terms, NICU equipment, and medical decisions that feel overwhelming. You may already know your baby was born early. What you may not fully understand yet is what that means for their health, both right now and in the months ahead.

This guide explains, the most common health problems premature babies face after birth, what parents may hear from the NICU team, and what questions are worth asking before discharge.

Why Premature Babies Face More Health Risks

Preterm birth means a baby is born before 37 completed weeks of pregnancy. The earlier the birth, the greater the risk of complications. Many of the body’s most critical systems, including the lungs, brain, digestive tract, eyes, ears, and immune response, finish important stages of development in the final weeks and months of a full-term pregnancy.

According to the CDC, babies born too early, especially those born before 32 weeks, have higher rates of disability and death. Survivors may experience breathing problems, feeding difficulties, cerebral palsy, developmental delay, vision problems, and hearing problems.

The Merck Manual notes that because preterm babies had less time to grow in the womb, their organs are not fully developed, making them prone to breathing, feeding, and infection problems. Babies born very early have a higher chance of long-term health problems such as cerebral palsy, hearing problems, or learning disorders, though many preterm babies have no longer-term problems at all.

Understanding these risks is not about predicting the worst outcome. It is about being informed so you can ask better questions and follow up with the right specialists.

Breathing and Lung Problems in Premature Babies

Breathing problems are among the most common NICU challenges for premature newborns. The lungs are among the last organs to fully mature, and babies born early often lack sufficient surfactant, a substance that keeps the tiny air sacs in the lungs from collapsing with each breath.

Common conditions parents may hear about include:

• Respiratory Distress Syndrome (RDS): Caused by low surfactant levels, RDS makes it harder for the lungs to expand and contract normally. Babies with RDS often need breathing support, which may include supplemental oxygen, continuous positive airway pressure (CPAP), or mechanical ventilation. Surfactant therapy is commonly used for very preterm infants.
• Apnea of Prematurity: Periods when the baby stops breathing for 10 to 20 seconds or longer, sometimes with a drop in heart rate or oxygen levels. This is managed with close monitoring, stimulation, and sometimes caffeine therapy.
• Bronchopulmonary Dysplasia (BPD): A longer-term lung condition that can develop after prolonged oxygen or ventilator support. Some children with BPD may have ongoing respiratory sensitivity and need follow-up with a pediatric pulmonologist after leaving the NICU.

The NICU team monitors breathing continuously through pulse oximetry and adjusts support as the lungs mature. Many infants improve significantly as they grow.

Brain and Nervous System Concerns in Premature Babies

Prematurity increases the risk of brain-related complications because certain parts of the brain and the blood vessels around them are still developing and quite fragile at the time of early birth.

Common neurological findings in premature babies include:

• Intraventricular Hemorrhage (IVH): Bleeding into the fluid-filled spaces inside the brain, called the ventricles. IVH is graded from I to IV based on severity. Grades I and II often resolve without major long-term effects. Grades III and IV carry a higher risk of lasting neurological injury, including cerebral palsy, developmental delays, and hydrocephalus. Most cases are detected through routine brain ultrasound rather than visible symptoms. According to NYBI’s IVH resource, intraventricular hemorrhage affects up to 45% of very preterm infants, particularly those born before 30 weeks of gestation.
• Periventricular Leukomalacia (PVL): Injury to the white matter of the brain near the ventricles. PVL can affect the nerve pathways that control movement and may increase the risk of cerebral palsy and other motor and cognitive difficulties.
• Seizures: Some premature babies experience seizures in the NICU, which may reflect underlying brain injury, infection, or metabolic disturbance. Seizures are treated with medications and monitored closely.
• Developmental Delays: Very preterm birth increases the overall risk for motor and cognitive impairments, though outcomes vary widely from child to child.

The NICU team typically uses cranial ultrasound for initial screening. An MRI may be ordered when a more detailed picture of brain structure is needed. Early intervention services, including physical, occupational, and speech therapy, often begin during the NICU stay and continue after discharge. Parents who want to understand more about brain injuries related to birth can find additional detail through NYBI’s dedicated resource pages.

Feeding, Digestive, and Growth Challenges

The digestive system of premature babies is immature, and this creates real challenges around feeding and weight gain, both of which are required before most babies can leave the NICU.

Common digestive concerns include:

• Feeding Difficulties: Many premature infants cannot coordinate the sucking, swallowing, and breathing needed for bottle or breastfeeding right away. Tube feeding through the nose or mouth is common in the early NICU weeks, with gradual transitions toward oral feeding as the baby matures.
• Necrotizing Enterocolitis (NEC): A serious inflammatory condition of the intestines, NEC is most common in very preterm infants. It can cause feeding intolerance, abdominal swelling, and in severe cases, intestinal perforation requiring surgery. Human breast milk has been shown to reduce NEC risk.
• Jaundice: Immature liver function makes preterm infants prone to elevated bilirubin levels. Jaundice is monitored with blood tests and usually treated with phototherapy (light therapy). Severe untreated jaundice can lead to brain damage if not managed appropriately, though this outcome is preventable with timely medical care.
• Poor Weight Gain: Premature babies often need caloric fortification added to breast milk or formula to support the rapid growth their bodies require.

Feeding is often the final milestone before a premature baby can go home. The NICU team, along with lactation consultants, will help parents develop a feeding plan suited to their baby’s developmental stage.

Infection Risk and Immune System Vulnerabilities

Premature infants have immature immune systems and are more vulnerable to infections than full-term babies. They receive fewer maternal antibodies before birth, and the skin and mucosal barriers that protect against germs are less developed.

The use of IV lines, breathing tubes, and feeding tubes during NICU care also introduces potential entry points for bacteria. NICU teams follow strict infection-control practices, including hand hygiene protocols and careful equipment management, to minimize this risk.

Signs that may indicate infection include temperature instability, apnea, poor feeding, or a change in breathing. When infection is suspected, the team typically draws blood cultures and may begin antibiotics while waiting for results.

Most premature babies who develop infections respond well to prompt treatment. However, severe infections, including sepsis and meningitis, can have lasting effects, particularly if they affect the brain or bloodstream.

Vision and Hearing Concerns

Retinopathy of Prematurity (ROP) is an eye condition caused by abnormal development of the blood vessels in the retina. It is screened for routinely in at-risk premature infants through ophthalmologic exams. Most cases are mild and do not require treatment, but more advanced cases may need laser therapy, injections, or surgery to protect vision.

Hearing loss is also more common in premature infants, related to prematurity itself, certain medications, or infections. Newborn hearing screening is standard, and babies who do not pass the initial screen receive further diagnostic testing. Early identification of hearing loss allows for timely interventions such as hearing aids and speech and language support.

Temperature Regulation and Other Physical Challenges

Premature babies have limited body fat and immature temperature-regulation systems, making it hard for them to stay warm on their own. In the NICU, incubators and radiant warmers help maintain stable body temperature. Skin-to-skin contact with a parent, often called kangaroo care, is encouraged when the baby is medically stable and supports both warmth and bonding.

Other physical challenges premature babies may face include:

• Low blood sugar (hypoglycemia): Monitored with glucose checks and treated with glucose supplementation as needed.
• Anemia: Premature babies have a higher rate of red blood cell loss and may require iron supplementation or, in some cases, blood transfusions.
• Skin fragility: Premature skin is thinner and more sensitive, requiring specialized wound care and careful positioning to prevent pressure injuries.

What to Ask Before Your Baby Leaves the NICU

Discharge from the NICU is a major milestone, and preparing for it involves more than packing a bag. Before going home, parents should feel confident in understanding their baby’s ongoing needs.

Questions worth asking the NICU team include:

1. What follow-up appointments are needed, and with which specialists?
2. Will my baby need any medications, oxygen support, or monitoring equipment at home?
3. What feeding plan should I follow, and who can I call if feeding becomes difficult?
4. What warning signs should prompt me to call the doctor or go to the emergency room?
5. Has my baby been referred for early intervention services such as physical, occupational, or speech therapy?
6. When is the next hearing and vision check scheduled?
7. Has a high-risk infant follow-up clinic appointment been arranged?

Ask for written instructions and do not hesitate to request a review of anything that is unclear before leaving the hospital.

Long-Term Follow-Up Care for Premature Babies

Leaving the NICU does not mean the work is over. Many premature babies, especially those born very early or with significant complications, benefit from ongoing monitoring and therapy for months or years after discharge.

Long-term follow-up often includes:

• Primary care visits with a pediatrician familiar with premature infant development
• High-risk infant follow-up clinics, available at many children’s hospitals in New York, which track growth, neurodevelopment, hearing, and vision
• Early intervention services, available through New York State for eligible children under age three, providing physical, occupational, and speech therapy at no cost to qualifying families
• Pediatric neurology, particularly for babies who had IVH, PVL, seizures, or neonatal asphyxia
• Pediatric pulmonology, for babies with ongoing respiratory issues or BPD
• Ophthalmology, for ROP follow-up until retinal development is complete

Early identification of developmental delays is important because early therapy tends to produce better outcomes. If you are in New York and are unsure how to access early intervention services, your baby’s pediatrician or NICU discharge team can provide a referral.

When Premature Birth Complications May Raise Questions About Medical Care

Most premature birth complications are the result of early development, not medical error. Prematurity itself increases risk, and many outcomes cannot be predicted or fully prevented.

There are situations, however, where families may reasonably want to understand whether the standard of care was followed. These may include circumstances where a maternal infection was not detected or treated in time, where signs of fetal distress were not acted upon, where a delayed delivery decision may have contributed to complications, or where NICU responses to a baby’s deteriorating condition did not follow accepted guidelines.

If you have concerns about what happened during your delivery or your baby’s NICU care in New York, a useful starting point is requesting and reviewing the complete medical records, including labor and delivery notes, nursing records, and NICU documentation. Discussing those records with an independent medical professional can help clarify what happened and whether further review is warranted.

To learn more about how specific complications may connect to birth events, NYBI’s resource center covers a range of birth injuries in plain language.

Questions About Premature Birth Complications After a Difficult Delivery?

If your baby was born early and experienced oxygen deprivation, seizures, brain bleeding, infection, emergency delivery, or a long NICU stay, reviewing the medical timeline may help clarify what happened. NYBI can help families understand which records may matter and whether a preventable birth injury should be reviewed.

What Parents of Premature Babies Should Remember

NICU teams, early intervention specialists, and follow-up clinics exist precisely because premature babies can and often do thrive with the right care. Staying informed, asking questions, and following through on recommended appointments gives your baby the strongest possible foundation moving forward. You do not need to understand every medical term, but you do deserve clear answers from every member of your baby’s care team. If anything about your baby’s care raises concerns, you have every right to ask for records, seek a second opinion, and consult with specialists who can review the full picture.

Frequently Asked Questions

This article is intended for general educational purposes only and does not constitute medical or legal advice. Every premature baby’s situation is unique. Please consult your baby’s neonatologist, pediatrician, and other treating specialists to understand your child’s specific diagnosis, prognosis, and care plan.