Society of Diabetic Nephropathy Prevention Journal of Preventive Epidemiology 2476-3934 3 2 2018 07 01 The prevalence and causes of herbal drug use in pregnant women referring to Abadan health centers; a cross-sectional study in southwest Iran e16 e16 EN Noorollah Tahery https://orcid.org/0000-0002-3205-9483 Nahid Mahmodi Razieh Shirzadegan https://orcid.org/0000-0002-5910-6809 Journal Article 2018 06 19 2018 10 10 Introduction: Using herbal medicines or medicinal herbs is as old as human presence on the planet, and almost all tribes and nations used plants grown in the wild around them. Objectives: According to importance of mother and her fetus care in pregnancy period, and rising sharply use of herbal medicine this study conducted to determine the prevalence and cusses of herbal drug use in pregnant women in Abadan. Methods: In this cross-sectional descriptive–analytical study, with random two stage, 420 women referring to Abadan health centers were assessed. Results: Result showed that 34.4% of study units in pregnancy period used herbal drugs. The most range of using was first semester (50.8%). The most causes of using herbal drugs were vomiting and nausea (30.2%). Conclusion: Increased knowledge of people about herbal medicine side effects on mother and her fetus is necessary.