Nausea during pregnancy
Aug 24, 2022
Source: Cainiu Health
Dr. Zhao Haiming
Introduction
Nausea during pregnancy is likely due to early pregnancy symptoms. If this symptom occurs before 12 weeks of gestation, it is generally attributed to early pregnancy reactions. No specific treatment is required unless the vomiting is severe. Typically, vomiting gradually subsides after 12 weeks. However, if frequent vomiting persists at night beyond 12 weeks, liver and kidney function tests should be repeated, with particular attention to whether serum transaminase levels are normal.
Pregnant women commonly experience early pregnancy symptoms, such as nausea and vomiting. Some women develop health complications due to severe early pregnancy reactions and thus require timely intervention. Nausea and vomiting are primarily triggered by elevated estrogen levels during pregnancy. So, why does nausea occur during pregnancy?
Causes of Nausea During Pregnancy
Nausea during pregnancy is often attributable to early pregnancy reactions. If these symptoms occur before 12 weeks of gestation, they are generally considered typical early pregnancy reactions. Mild nausea and vomiting typically do not require specific treatment. In most cases, vomiting gradually subsides after 12 weeks. However, if frequent vomiting persists beyond 12 weeks—especially at night—it is advisable to re-evaluate liver and kidney function and assess whether serum transaminase levels are within normal limits. Some patients presenting with nausea and vomiting may have underlying hepatitis; for such individuals, hepatoprotective medications should be administered.
The primary cause of early pregnancy reactions is the rise in human chorionic gonadotropin (hCG) levels. Additional contributing factors include inadequate rest, poor mental well-being, and suboptimal physical constitution. Typically, early pregnancy symptoms begin around one month after conception and gradually ease by approximately two and a half months into pregnancy. Therefore, specific medical treatment is usually unnecessary, and normal early pregnancy reactions pose no adverse effect on fetal growth and development.
Pregnant women are advised to prioritize adequate rest, maintain a light and balanced diet, and ensure sufficient sleep during early pregnancy. We hope this information proves helpful.
