Do pregnancy complications at advanced maternal age raise autism risk? 

The relationship between pregnancy complications, advanced maternal age, and autism is a growing focus in maternal health research. As more women give birth later in life, studies suggest that certain pregnancy complications may slightly increase the risk of autism in children, particularly when combined with age-related factors. 

When exploring advanced maternal age and autism, conditions such as preeclampsia, preterm birth, and placental problems are often highlighted. These are more common in older pregnancies and may influence foetal brain development. While not every complication leads to a higher risk, the presence of multiple obstetric complications appears to correlate with increased vulnerability to neurodevelopmental conditions. 

Why it matters for later pregnancies 

Here’s how pregnancy complications, advanced maternal age, and autism can intersect in subtle but important ways: 

Higher complication rates in older mothers  

Issues such as preeclampsia and placental problems are more likely with age, and they can disrupt oxygen or nutrient flow during critical stages of development. 

Compound risks from obstetric strain  

When multiple obstetric complications occur, the combined stressors may increase the likelihood of developmental changes linked to autism. 

Visit providers like Autism Detect for personal consultations to understand how maternal health and sensory processing may influence your child’s development and how to support effective sensory regulation and comfort. 

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Advanced Parental Age.

Hannah Smith, MSc

Author

Hannah Smith is a clinical psychologist with a Master’s in Clinical Psychology and over three years of experience in behaviour therapy, special education, and inclusive practices. She specialises in Applied Behavior Analysis (ABA), Cognitive Behavioural Therapy (CBT), and inclusive education strategies. Hannah has worked extensively with children and adults with Autism Spectrum Disorder (ASD), ADHD, Down syndrome, and intellectual disabilities, delivering evidence-based interventions to support development, mental health, and well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the author's privacy. 

Dr. Rebecca Fernandez, MBBS

Reviewer

Dr. Rebecca Fernandez is a UK-trained physician with an MBBS and experience in general surgery, cardiology, internal medicine, gynecology, intensive care, and emergency medicine. She has managed critically ill patients, stabilised acute trauma cases, and provided comprehensive inpatient and outpatient care. In psychiatry, Dr. Fernandez has worked with psychotic, mood, anxiety, and substance use disorders, applying evidence-based approaches such as CBT, ACT, and mindfulness-based therapies. Her skills span patient assessment, treatment planning, and the integration of digital health solutions to support mental well-being.

All qualifications and professional experience stated above are authentic and verified by our editorial team. However, pseudonym and image likeness are used to protect the reviewer's privacy.