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What causes nausea at 37 weeks of pregnancy?

Aug 24, 2022 Source: Cainiu Health
Dr. Chen Zhe
Introduction
Nausea at 37 weeks of gestation may be associated with hormonal changes in the body. Fluctuations in hormone levels during pregnancy can trigger nausea, which is a normal physiological response. As each pregnant woman’s physical condition differs, the duration of pregnancy-related symptoms—including nausea—varies accordingly. In some cases, nausea during pregnancy may be related to gastrointestinal disorders, such as gastritis or gastric ulcers.

Individuals have varying constitutions, so pregnancy experiences—and the memories they leave behind—differ significantly. Most women experience nausea to varying degrees during the first trimester (the first three months of pregnancy); in some cases, nausea may persist until delivery. So, what causes nausea at 37 weeks of gestation?

What Causes Nausea at 37 Weeks of Pregnancy?

Nausea at 37 weeks’ gestation may be related to hormonal fluctuations. Significant hormonal changes during pregnancy can trigger nausea—a normal physiological response. Because each pregnant woman’s physical condition differs, the duration and intensity of pregnancy-related symptoms also vary. In some cases, nausea may stem from gastrointestinal disorders such as gastritis, gastric ulcers, or duodenal ulcers. Excessive gastric acid secretion may also provoke nausea. Regular consumption of spicy or irritating foods can similarly contribute to this symptom. If pronounced nausea or vomiting occurs, prompt medical consultation is recommended.

Nausea during pregnancy most commonly occurs in early pregnancy—specifically, within the first 1–3 months after conception. Following conception, a rapid rise in human chorionic gonadotropin (hCG) levels often triggers various symptoms, including nausea, vomiting, fatigue, and loss of appetite. When these symptoms arise, pregnant women are advised to consume light, easily digestible foods—such as fruits and vegetables—and reduce intake of greasy or heavy meals. Stress reduction techniques may also help alleviate symptoms. Vitamin B6 supplementation can effectively ease early-pregnancy nausea; however, dosage should be carefully monitored to avoid potential adverse drug effects. Most women begin experiencing nausea and vomiting around week 6 of pregnancy, while a minority may notice symptoms as early as week 4. Typically, such symptoms subside by approximately week 12.

If nausea or vomiting develops during pregnancy, timely medical evaluation and treatment—under professional medical guidance—are essential. We hope this information has been helpful.

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