Nausea and vomiting of pregnancy is a common condition that affects the health of a pregnant woman and her fetus. It can diminish a woman’s quality of life and also significantly contributes to health care costs and time lost from work (1, 2). Because morning sickness is common in early pregnancy, the presence of nausea and vomiting of pregnancy may be minimized by obstetricians, other obstetric care providers, and pregnant women and, thus, undertreated (1). Furthermore, some women do not seek treatment because of concerns about the safety of medications (3). Once nausea and vomiting of pregnancy progresses, it can become more difficult to control symptoms. Treatment in the early stages may prevent more serious complications, including hospitalization (4). Safe and effective treatments are available for more severe cases, and mild cases of nausea and vomiting of pregnancy may be resolved with lifestyle and dietary changes. The woman’s perception of the severity of her symptoms plays a critical role in the decision of whether, when, and how to treat nausea and vomiting of pregnancy. Nausea and vomiting of pregnancy should be distinguished from nausea and vomiting related to other causes. The purpose of this document is to review the best available evidence about the diagnosis and management of nausea and vomiting of pregnancy.
Committee on Obstetric Practice—This Practice Bulletin was developed by the American College of Obstetricians and Gynecologists’ Committee on Practice Bulletins—Obstetrics in collaboration with Susan M. Ramin, MD.
This information is designed as an educational resource to aid clinicians in providing obstetric and gynecologic care, and use of this information is voluntary. This information should not be considered as inclusive of all proper treatments or methods of care or as a statement of the standard of care. It is not intended to substitute for the independent professional judgment of the treating clinician. Variations in practice may be warranted when, in the reasonable judgment of the treating clinician, such course of action is indicated by the condition of the patient, limitations of available resources, or advances in knowledge or technology. The American College of Obstetricians and Gynecologists reviews its publications regularly; however, its publications may not reflect the most recent evidence. Any updates to this document can be found on www.acog.org or by calling the ACOG Resource Center.
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Nausea and vomiting of pregnancy. ACOG Practice Bulletin No. 189. American College of Obstetricians and Gynecologists. Obstet Gynecol 2018;131:e15–30.
Received November 21, 2017
Accepted November 21, 2017