Coping With Trauma: How a Parent's Unresolved Trauma Can Affect Their Children

This article was updated on September 15, 2026.

How does a parent's past shape a child's future? Intergenerational trauma is the psychological process by which a caregiver's unresolved trauma impacts their child's development through distinct biological, psychological, and behavioral pathways. This inheritance often alters a parent’s stress responses and relational style, unconsciously transferring emotional burdens onto the next generation. (Learn more about how this cycle starts in my comprehensive guide to understanding intergenerational trauma patterns: What is Intergenerational Trauma?).

A Parent's Unresolved Trauma Can Affect Their Children

Disruptions in Parenting and Attachment

Unresolved trauma often impairs a parent's ability to provide a stable, nurturing environment which is essential for healthy development:

• Emotional Unavailability: A parent might suppress their own emotional pain through defense mechanisms like emotional detachment which makes it difficult for them to be attuned to the child's needs.

• Insecure Attachment: A traumatized parent is more likely to establish insecure attachment (anxious, avoidant or disorganized attachment style) with their children. This often leads to difficulties with children being able to trust others and regulate their emotions.

• Maladaptive Parenting Styles: A parent might lean to maladaptive parenting styles including authoritarian (harsh discipline), permissive (inconsistent boundaries), or negligent parenting.

• Intense Triggers: Everyday parent-child interactions, such as a child's tantrum or defiance, can trigger strong, irrational emotional responses in a parent which is rooted in their own past experiences rather than the present moment.

Psychological and Behavioral Outcomes For the Child

Children of parents with unresolved trauma are at a higher risk for various mental health and behavioral challenges:

• Internalizing Problems: These children are at a higher risk for anxiety, depression and low self esteem.

• Externalizing Behaviors: There is a higher likelihood of aggression, defiance and hyperactivity which are sometimes misinterpreted as "misbehavior" rather than a response to a trauma.

• Hypervigilance: Children might become overly sensitive to a parent's moods, constantly "watching" to anticipate potential threats (see my article: What is Hypervigilance?).

• Role Reversal: A child might feel responsible to "fix" their parent's mood or take care of their parent's emotional needs, a dynamic known as parentification (see my article: Role Reversal in Parent-Child Relationships).

• A Need to Be "Perfect": For a child of a traumatized parent, perfectionism often develops as a survival strategy rather than a personality trait. It serves as a "psychological shield" to manage an environment that feels unsafe, unpredictable or emotionally demanding.

Biological and Neurobiological Impacts

According to research by the National Institutes of Health, parental trauma can lead to measurable changes in a child's biology, sometimes before birth:

• Brain Development: Maternal childhood trauma has been linked to smaller brain volume and weaker connectivity in neural circuits responsible for emotion regulation (such as between the amygdala and prefrontal cortex).

• Stress Response Systems: Trauma can alter a child's stress response system which leads to abnormal levels of cortisol, which is the body's primary stress hormone.

• Epigenetics: According to the National Institutes of Health, trauma can be transmitted from parent to child through epigenetic mechanisms where the stress of a parent's experience alters gene expression in their offspring, potentially making the child more vulnerable to stress and mental health conditions later in life.

Long Term Health Conditions

The impact of growing up with a traumatized parent can extend into adulthood increasing the risk of:

• Chronic Diseases: Higher rates of heart disease, diabetes and autoimmune disorders

• Somatic Problems: Frequent unexplained physical symptoms such as headaches and stomachaches

• Risky Behavior: A greater likelihood of engaging in risky behavior including substance abuse or other self destructive behaviors and maladaptive coping strategies

Breaking Intergenerational Cycles of Trauma With Help in Trauma Therapy

Parents who have unresolved trauma can break the cycles of intergenerational trauma by getting help in trauma therapy. 

Trauma therapy can help adults to work through their trauma to heal their emotional wounds and develop more responsive parenting techniques (see my article: How Trauma Can Help You to Overcome Trauma).

About Me

I am a licensed New York psychotherapist, hypnotherapist, EMDR, AEDP, EFT (for couples), Somatic Experiencing, Parts Work Therapist (IFS and Ego States Therapy) and Certified Sex Therapist.

As a trauma therapist, I have helped many individual adults and couples over the years.

To find out more about me, visit my website: Josephine Ferraro, LCSW - NYC Psychotherapist.

I provide a free 15 minute phone call before setting up an appointment.

I see clients in my Greenwich Village office in New York City and online.

Call me at (917) 742-2624 during business hours or email me.