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How Birth Trauma Can Affect Child Development Over Time

How Birth Trauma Can Affect Child Development Over Time

by Sensory Therapy Place

Pediatric OT · Birth & Nervous System · Brewer, Maine

How birth trauma can affect a child's development over time.

By Earl Mamaril, MS, OTR/L — traumatic births can affect children in two distinct ways: physical trauma to the baby, and emotional trauma carried by the mother. Both shape nervous system development. Here's what the research shows — and what families can do.

When we talk about traumatic births, we mean two things:

  1. Physical trauma for the baby — birth complications, emergency procedures, oxygen deprivation, or extended NICU stays
  2. Emotional or psychological trauma for the mother — overwhelming pain, fear, or unexpected medical interventions

Both kinds of trauma can affect a child's long-term development. As parents and as a clinical team, understanding these risks helps us notice early signs, seek support, and feel empowered in your child's care journey.

How trauma at birth can affect infants

During birth, babies experience a massive transition from the womb to the outside world. When complications arise — oxygen deprivation, emergency C-sections, extended NICU procedures — the baby's brain and nervous system are placed under significant stress.

Research shows that early painful or stressful medical procedures in newborns, especially preterm babies, can have lasting effects on the brain. Repeated pain exposure in the NICU has been shown to alter how the brain wires itself, leading to changes in stress hormones and emotional regulation later in life (Walker, 2019). These changes can increase the risk for sensory processing differences, attention challenges, or emotional dysregulation as the child grows.

What this looks like clinicallyThe infant nervous system gets "programmed" to stay on high alert, which can make calming down or focusing harder later in childhood. This isn't permanent — but it's worth knowing about so you can support the nervous system as your child develops.

How maternal trauma affects children

Birth trauma doesn't only affect the baby — it also impacts the mother. And maternal nervous system state shapes infant nervous system state through co-regulation. Studies have shown that mothers who develop post-traumatic stress disorder (PTSD) after childbirth may have children who struggle more with emotional regulation and behavior.

In a large 2024 study of 419 mothers, those with childbirth-related PTSD had toddlers who showed more tantrums, emotional outbursts, and social difficulties by age two — even when maternal depression was controlled for (Suarez et al., 2024). Researchers believe this happens because trauma can interfere with bonding and consistent caregiving, making it harder for the child to feel safe and regulated.

When a mother's nervous system is still in survival mode, it's harder to help the baby develop a calm, secure foundation. This is biology, not blame. Maternal mental health is foundational to child development.

Risk for later neurodevelopmental concerns

Population studies suggest that birth complications are linked with higher risks of developmental concerns including:

While not every child who experiences birth trauma will face these issues, the risks are statistically higher. That's why early intervention, supportive parenting, and close follow-up care matter. Learn about retained primitive reflexes and birth history →

What parents can do

The good news is that children's brains are incredibly adaptable. With the right support, they can build new connections and skills that reduce the long-term impact of early trauma.

Final thoughts

A traumatic birth is not the end of your child's story. While it can raise risks for developmental and emotional challenges, the power of early therapy, nurturing care, and parent support cannot be overstated. By staying informed and seeking help early, families can help children not only recover — but thrive.

Wondering if birth history is affecting your child today?

A pediatric OT evaluation at our Brewer clinic can map specifically what your child's nervous system needs.

Earl Mamaril, MS, OTR/L is the founder of Sensory Therapy Place, a pediatric occupational therapy clinic in Brewer, Maine. He works with families in-clinic and via telehealth nationwide.

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