What is it about?
Phthalates are chemicals widely used in plastics, cosmetics, medical devices, and many everyday products. Because they are so common, people are exposed to them regularly through food, air, and skin contact. In this study, we carried out a systematic review of the scientific literature to understand how phthalates affect reproductive health in both men and women. We analyzed a large number of experimental and human studies to identify consistent patterns and key findings. The evidence shows that several commonly used phthalates—such as DEHP, DBP, and BBP—can disrupt the hormonal (endocrine) system and interfere with normal reproductive processes. These effects include impacts on fertility, hormone levels, gonadal function, and reproductive development.  The review also highlights that the effects of phthalates depend on factors such as age, sex, and level and duration of exposure. Overall, the study provides a comprehensive overview of how these chemicals may influence reproductive health across different populations.
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Why is it important?
Phthalates are among the most widely used chemicals globally, and human exposure is almost unavoidable. At the same time, reproductive health problems—such as infertility and hormonal disorders—are increasing worldwide. This work is important because it brings together and critically evaluates existing evidence on the reproductive toxicity of phthalates. By identifying consistent links between exposure and adverse outcomes, the study helps clarify risks that are often scattered across many individual studies. The findings highlight the role of phthalates as endocrine-disrupting chemicals that can interfere with hormone regulation and reproductive function.  Importantly, the review underscores the need for stricter regulation of phthalate use and supports the development of safer alternatives. It also provides valuable guidance for policymakers, researchers, and public health professionals working to reduce harmful exposures.
Perspectives
This study emphasizes the importance of integrating data from multiple disciplines—epidemiology, toxicology, and molecular biology—to better understand the real-world impact of chemical exposures on human health. From a personal perspective, one of the key contributions of this work is the identification of critical factors—such as exposure timing, duration, and population characteristics—that influence the severity of reproductive effects. This highlights the complexity of assessing chemical risks in humans. Looking ahead, there is a clear need for more standardized and high-quality studies to reduce inconsistencies in the literature and strengthen causal conclusions. Future research should also focus on combined exposures (mixtures of chemicals), which better reflect real-life conditions. Overall, this work contributes to the growing effort to improve chemical safety assessment and supports the transition toward safer materials and better protection of reproductive health.
Dr Antreas Afantitis
NovaMechanics Ltd
Read the Original
This page is a summary of: A Systematic Literature Review of Reproductive Toxicological Studies on Phthalates, International Journal of Molecular Sciences, September 2025, MDPI AG,
DOI: 10.3390/ijms26188761.
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