You are reading: 7 Reasons For Third Trimester Nausea And Its Prevention
Third-trimester nausea and vomiting are less common. Usually, nausea and vomiting subside by the 16th week of pregnancy in most women. Overall, only 20% of pregnant women experience nausea and vomiting throughout pregnancy (1).
The exact causes of nausea and vomiting in pregnancy are unknown, but knowing and avoiding triggers can help you manage the condition. Occasional incidence of nausea and vomiting in the third trimester may not be a cause for concern. However, seek medical care if you have persistent nausea or vomiting in the third trimester.
Read on to know about the common causes and preventive measures for third-trimester nausea and vomiting.
Causes Of Third Trimester Nausea
While increasing HCG levels are one of the reasons for the first trimester morning sickness, it can be difficult to understand the cause of nausea in the third trimester (2). The following could be the possible causes of nausea in the third trimester.
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- Changing hormones: Frequent fluctuations in the hormones might cause nausea and vomiting in the third trimester.
- Growing baby: The growing baby exerts a lot of pressure on the digestive system. With decreasing space in the abdomen as the baby grows, you may experience symptoms, including nausea, heartburn, and vomiting.
- Diet: Too spicy, greasy, or acidic foods can exacerbate nausea and vomiting. Track your diet and avoid foods that may lead to nausea.
- Changes in the body: Growing uterus and baby can make you feel ill at times. Pressure from the growing uterus, sleep disturbances, stress and anxiety about labor, childcare, etc., may lead to nausea and vomiting.
- Preeclampsia: The sudden reappearance of nausea and vomiting midway through pregnancy may be associated with preeclampsia. Inform your healthcare provider about it (3).
- HELLP syndrome: HELLP syndrome stands for the following blood and liver problems (4).
- H – Hemolysis (It is the breakdown of the red blood cells)
- EL – Elevated liver enzymes (It can be a sign of liver problems)
- LP – Low platelet count (It can lead to serious bleeding)
Nausea and throwing up (that gets worse) are the common symptoms of HELLP syndrome.
- Acute fatty liver of pregnancy: Acute fatty liver of pregnancy (AFLP) is a rare but serious problem in pregnancy. The exact cause of AFLP is unknown. However, it starts late in the third trimester of pregnancy and can cause nausea and vomiting (5).
Ways To Prevent Nausea In The Third Trimester
The following measures can help in preventing nausea (6).
- Try to get enough sleep and rest.
- Avoid caffeinated beverages, including tea, and coffee as they aggravate your symptoms.
- Eat small, frequent meals throughout the day.
- Consume a lot of fluids to avoid dehydration and associated nausea.
- Practice gentle exercises after consulting your healthcare provider.
- Avoid lying down immediately after meals and have your dinner two to three hours before bedtime.
- Sugary, spicy, and greasy foods can worsen the nausea symptoms. Identify which food triggers your symptoms to avoid them.
- Some fragrances or smells can trigger your nausea, so avoid them.
- Eating bland food when you are nauseated might help. You can include rusk, Jell-O, popsicles, chicken broth, saltine crackers, gelatin desserts, pretzels, etc.
- Ginger shows varying effectiveness in different women with nausea and vomiting of pregnancy (1).
- Stay in well-ventilated and lighted places as closed spaces may also aggravate nausea and vomiting in pregnancy.
If nausea and vomiting are too severe, contact your healthcare provider. They might prescribe the necessary medications to help you feel better.
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Signs You Need To See A Doctor
While nausea and vomiting of pregnancy are not always a sign of a problem, you should see your doctor in the following scenarios.
- Inability to keep any food or fluids down
- Loss of appetite
- Sudden weight loss
- Reduction in the fetal movement
- Severe weakness
- Several episodes of vomiting through the day
In rare cases, severe nausea and vomiting may require hospitalization. The doctor might administer intravenous fluids or antiemetic drugs (medicines to prevent nausea) via a vein or a muscle. Bring it to your OB/GYN’s notice if you experience frequent nausea in the third trimester to prevent dehydration and other complications.