Occupational Health Impacts on Pregnancy Outcomes

Occupational exposures during pregnancy encompass a broad array of physical, chemical and psychosocial factors that can influence maternal and foetal health. Physical demands such as prolonged standing, heavy lifting and exposure to whole‐body vibration have been linked to preterm birth, low birth weight and small-for-gestational-age infants. Shift work and long working hours may disrupt circadian rhythms and endocrine function, potentially increasing the risk of miscarriage and hypertensive disorders of pregnancy. Chemical exposures—ranging from solvents and heavy metals to particulate matter—can exert toxic effects on the developing foetus, while psychosocial stressors including high job strain or low control at work contribute to adverse outcomes through neuroendocrine and inflammatory pathways. The cumulative impact of these hazards is shaped by individual susceptibility, workplace policies and access to prenatal care. Globally, as female labour‐force participation rises, understanding and mitigating occupational risks has become critical for public health. Practical measures include ergonomic adjustments, targeted screening by occupational health services, and policy frameworks that mandate safe working conditions for pregnant workers.

Research from Nature Portfolio

No recent Nature Portfolio content available.

Occupational Health Impacts on Pregnancy Outcomes publication trend

The graph below shows the total number of articles in occupational health impacts on pregnancy outcomes across all publications each year (not limited to Nature Index journals).

Technical terms

Preterm birth: Delivery before 37 completed weeks of gestation.

Small-for-gestational-age (SGA): Birth weight below the 10th percentile for gestational age.

Whole-body vibration (WBV): Mechanical oscillation transmitted through the body from occupational machinery or vehicles.

Job‐exposure matrix (JEM): A tool that assigns exposure levels to workers based on job and industry codes.

Psychosocial job strain: A work condition characterised by high demand coupled with low control over work tasks.

References

1. Maternal Occupational Risk Factors and Preterm Birth: A Systematic Review and Meta-Analysis. Public Health Reviews (2023).
2. Occupational exposure to whole body vibrations and birth outcomes – A nationwide cohort study of Swedish women. The Science of The Total Environment (2020).
3. Combined exposure to lifting and psychosocial strain at work and adverse pregnancy outcomes—A study in the Danish National Birth Cohort. PLOS ONE (2018).