What Causes Nausea and Vomiting in Pregnancy?

During pregnancy, some women experience no nausea or vomiting, while others suffer from severe vomiting. What causes nausea and vomiting in pregnant women?

Causes of Nausea and Vomiting in Pregnancy

The causes of nausea and vomiting during pregnancy vary depending on the gestational stage, and certain medical conditions may also trigger these symptoms. Pregnancy-related nausea (morning sickness): In early pregnancy, nausea and vomiting are commonly attributed to normal hormonal changes—elevated levels of human chorionic gonadotropin (hCG), progesterone, and estrogen—which can lead to symptoms such as nausea, vomiting, loss of appetite, breast tenderness, and frequent urination. Pregnancy-related complications: Persistent or worsening nausea and vomiting during pregnancy warrant careful evaluation for potential complications, including hyperemesis gravidarum, acute fatty liver of pregnancy (which may present with nausea, vomiting, jaundice, and elevated liver enzymes), viral hepatitis, or intrahepatic cholestasis of pregnancy.

Gastrointestinal disorders: These may occur at any stage of pregnancy—including mid- and late pregnancy—and include conditions such as foodborne illness or acute gastroenteritis, both of which can cause nausea and vomiting. Acute inflammatory conditions: Examples include acute appendicitis, acute pancreatitis, and acute cholecystitis—all of which may manifest with nausea and vomiting.

Dietary recommendations include eating small, frequent meals; choosing light, easily digestible foods; and incorporating appetite-stimulating options such as blueberries and other fresh fruits. Sipping small amounts of soda water may help neutralize excess stomach acid and improve appetite. Additionally, maintaining a supportive and harmonious family environment is vital for the pregnant woman’s well-being. We hope this information is helpful!