Can exposure to endocrine-disrupting chemicals increase autism risk?

PostedNovember 27, 2025

UpdatedNovember 27, 2025

ByMy Patient Advice

Author: Beatrice Holloway, MSc | Reviewed by: Dr. Rebecca Fernandez, MBBS

Research suggests that endocrine-disrupting chemicals and autism may be linked, particularly when exposure occurs during pregnancy. These substances, found in plastics, pesticides, and household products, can interfere with the body’s hormone systems, which are vital to brain development.

Exposure to even low levels of EDCs may cause subtle shifts in foetal brain structure or immune signalling. This is because these chemicals can mimic or block natural hormones, leading to hormonal disruption during key developmental windows. While the relationship between endocrine-disrupting chemicals and autism isn’t fully understood, the accumulating evidence suggests it’s wise to minimise contact like avoiding plastic containers with BPA or choosing fragrance-free personal care products.

Taking simple steps to reduce environmental exposures during pregnancy may support a healthier neurodevelopmental outcome, even if the overall risk remains low.

Early Traits to Monitor

Identifying developmental differences early allows for tailored support. These traits may not confirm autism but can help guide further observation.

Narrow interests or fixations

Children may become deeply attached to a single topic or toy, engaging with it repetitively and intensely.

Unusual communication patterns

This might include repeating words or phrases (echolalia) or struggling with back-and-forth conversation.

Discomfort with sensory input

Loud noises, certain textures, or bright lights might cause distress, leading to avoidance or meltdowns.

Visit providers like Autism Detect for personal consultations and insight into early signs and support pathways.

For a deeper dive into the science, diagnosis, and full treatment landscape, read our complete guide to Pre‑natal and Birth‑related Factors.

Beatrice Holloway, MSc

Author

Beatrice Holloway is a clinical psychologist with a Master’s in Clinical Psychology and a BS in Applied Psychology. She specialises in CBT, psychological testing, and applied behaviour therapy, working with children with autism spectrum disorder (ASD), developmental delays, and learning disabilities, as well as adults with bipolar disorder, schizophrenia, anxiety, OCD, and substance use disorders. Holloway creates personalised treatment plans to support emotional regulation, social skills, and academic progress in children, and delivers evidence-based therapy to improve mental health and well-being across all ages.

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.