Understanding Neonatal Sepsis: When Is it Malpractice?

Sepsis is one of the most serious infections a newborn can face, in part because a baby's condition can worsen quickly. The first signs may be poor feeding, unusual sleepiness, temperature changes, or breathing problems, followed by a much more serious decline.

When neonatal sepsis leads to brain damage, organ injury, or other complications, parents may be left trying to understand what happened during those first hours or days. Were the warning signs recognized? How quickly was the infection investigated? When were antibiotics started?

Here’s what parents need to know about newborn sepsis, the care doctors provide when they suspect an infection, and when a delay in diagnosis or treatment can become medical malpractice.

If your baby suffered a serious injury after developing sepsis, Hodes Milman has decades of experience handling complex medical malpractice claims. Call (949) 640-8222 or fill out our online form for a free consultation.

What Is Neonatal Sepsis?

Sepsis develops when an infection triggers a dangerous response in the body. In newborns, the infection can spread through the bloodstream and lead to serious complications involving the brain, lungs, heart, kidneys, and other organs.

Doctors generally classify cases based on when the infection develops. Early-onset sepsis occurs during the first days of life and is commonly associated with bacteria acquired around the time of delivery. Late-onset sepsis develops later and can be associated with bacteria or other pathogens encountered after birth, including during a hospital or NICU stay.

The CDC tracks early-onset sepsis in newborns and identifies Group B Streptococcus (GBS) and E. coli as its leading bacterial causes. GBS is the most common cause among term infants, while E. coli is more common among premature babies.

How Do Newborns Develop Sepsis?

There is no single answer to what is the cause of sepsis for newborns. The bacteria responsible for the infection and how the baby is exposed can differ based on when the infection begins.

GBS can pass from a mother to her baby around the time of delivery. E. coli is another major cause of early infection, especially among premature and very-low-birthweight infants. Later infections can be associated with organisms encountered in the hospital or elsewhere after birth.

Doctors also consider information from the pregnancy and delivery when assessing a newborn for possible infection. Maternal GBS status, suspected infection during labor, prematurity, and the baby's condition after birth can all affect how doctors approach testing and monitoring.

A 2025 review of early-onset sepsis discusses the use of maternal risk factors, neonatal risk assessment, microbiology, and antibiotic treatment in managing these infections. The authors describe early-onset sepsis as a substantial contributor to illness and death among newborns.

What Are the Warning Signs of Sepsis in a Newborn?

The signs of sepsis in newborn babies are not always specific to infection. Poor feeding, sleepiness, or changes in body temperature can have other explanations, which is why doctors look at the baby's symptoms together with vital signs, medical history, and known infection risks.

Symptoms associated with newborn sepsis can include:

• Poor feeding or refusing feeds
• Unusual sleepiness or difficulty waking
• Fever or low body temperature
• Rapid or difficult breathing
• Periods when the baby stops breathing
• Abnormally fast or slow heart rate
• Low blood pressure or poor circulation
• Vomiting or abdominal swelling
• Changes in responsiveness or behavior

A newborn's condition can also change over time. A feeding problem followed by respiratory distress, temperature instability, or abnormal vital signs gives doctors more information than any one symptom viewed alone.

Why Might Doctors Start Antibiotics Before Test Results Come Back?

Blood cultures are used to identify bacteria in the bloodstream, but doctors also have to make treatment decisions while testing is underway. A 2025 review in Clinics in Perinatology states that ampicillin and gentamicin are the routine empiric antibiotic regimen in most cases when early-onset sepsis is suspected.

Another 2025 review found that early recognition and timely use of empirical antibiotics remain central to treating newborn sepsis. At the same time, doctors have to balance prompt treatment against unnecessary antibiotic exposure in babies who do not have an infection.

In a delayed-treatment case, the medical record can show what doctors knew before antibiotics were given. Vital signs, nursing observations, laboratory orders, physician notes, and medication records can establish how the baby's condition changed and how the medical team responded.

When Can Newborn Sepsis Become a Medical Malpractice Case?

A medical malpractice claim involving newborn sepsis usually focuses on the care provided before the infection was diagnosed and treated. Medical experts can compare that care with the treatment a reasonably careful provider would have given under the same circumstances.

That review might address whether providers recognized known infection risks, responded appropriately to symptoms, ordered testing, acted on abnormal results, monitored the baby's changing condition, and started antibiotics when the clinical findings supported treatment.

The second issue is what the delay did to the baby. If an infection progressed during a period when treatment should have begun, experts can evaluate whether earlier antibiotics or other medical intervention would likely have prevented or reduced the resulting injury.

If your baby's symptoms were documented hours before treatment began, Hodes Milman can review the hospital records and determine what was happening during that period. Call (949) 640-8222 or message us online to start your free consultation today.

How Can Sepsis Cause Brain Damage?

A serious infection can disrupt blood pressure, breathing, circulation, and the delivery of oxygen to vital organs. For a newborn whose brain is still developing, those complications can result in permanent neurological injury.

Insufficient oxygen or blood flow to the brain can cause hypoxic-ischemic encephalopathy (HIE). Babies who sustain serious brain injuries can later experience seizures, developmental delays, problems with movement, or cerebral palsy.

These conditions have several possible causes, and a child's diagnosis alone cannot establish that sepsis was responsible. Medical experts can examine the infection, the baby's oxygen levels and blood pressure, neurological findings, imaging, treatment, and later diagnoses to determine how the injury occurred.

Sepsis and HIE are among the medical complications associated with some common birth injuries, especially when a baby experiences infection, oxygen deprivation, or other serious problems around the time of delivery.

What Would a Sepsis Malpractice Investigation Look For?

Hospital records create a detailed chronology of a newborn's care. Prenatal records and labor and delivery notes can identify infection risks that were known before birth, while newborn and NICU records document the baby's condition afterward.

A review may include:

• Maternal GBS testing and prenatal records
• Labor and delivery notes
• Nursing observations
• Newborn vital signs and feeding records
• Blood cultures and other laboratory testing
• Physician orders and progress notes
• Antibiotic orders and administration times
• Respiratory support and NICU records
• Brain imaging and neurological evaluations

Comparing these records can show when symptoms first appeared, when doctors were notified, when testing began, and how long it took for treatment to start. Experts can then evaluate the decisions made during the period when the infection was developing.

Your Baby Had Sepsis. Should You Question the Care?

Learning that your child had a dangerous infection is difficult enough. Learning that symptoms or infection risks appeared before treatment began can bring an entirely different set of concerns.

With neonatal sepsis, the medical questions usually center on what providers knew as the baby's condition changed and whether the response met the accepted standard of care. When a delay is followed by brain damage, organ injury, cerebral palsy, or another permanent condition, the records can also help determine whether earlier treatment would likely have changed the outcome.

Hodes Milman represents families in complex claims involving delayed diagnoses, serious medical errors, and catastrophic injuries. If you want to know whether a delay in diagnosing or treating your baby's sepsis contributed to a permanent injury, contact Hodes Milman at (949) 640-8222 for a free consultation. We can examine the hospital records and the decisions made before treatment began.