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Hypertension During Pregnancy


What you need to know about hypertension during pregnancy:

Hypertension is high blood pressure (BP). It is important to get screened and treated for an elevated BP or hypertension during pregnancy. This can prevent problems for you and your baby. Healthcare providers may give you specific instructions. This is based on the kind of hypertension you have, and when it started. Sometimes it is difficult to diagnose a specific kind of hypertension, but you can still follow general guidelines.

Blood Pressure Readings

What are the different types of hypertension during pregnancy?

  • Chronic hypertension means you have high BP before week 20 of your pregnancy. Hypertension may have been diagnosed before you became pregnant. Normal BP is 119/79 or lower. Elevated BP is 120/79 to 129/79. Stage 1 hypertension is 130/80 to 139/89. Stage 2 is 140/90 or higher. Severe BP is 160/100 or higher.
  • Gestational hypertension means you develop high BP between weeks 20 and 37 of your pregnancy. Gestational hypertension usually goes away after delivery, but it increases your risk for future chronic hypertension.
  • Preeclampsia is high BP that usually develops after week 20 of pregnancy. It can also develop within 4 weeks of delivery. You may also have protein in your urine or damage to organs such as your kidneys or liver. Preeclampsia can lead to life-threatening conditions such as a stroke or eclampsia (seizures from severe high BP).
  • HELLP syndrome is a life-threatening complication of high BP that may develop between week 20 of pregnancy and a few days after delivery. It causes destruction of red blood cells, liver problems, and blood clotting problems. Your risk for HELLP syndrome increases if you have a history of preeclampsia.

Signs and symptoms:

You may have no signs or symptoms. Hypertension may only be found during routine pregnancy checkups. You may have any of the following, depending on the kind of hypertension you have:

  • Headache or confusion
  • Spotted or blurred vision
  • Chest pain, trouble breathing, or a fast heartbeat
  • Dizziness or weakness
  • Abdominal pain, or pain on the right side of your upper abdomen, behind the ribs
  • Nausea and vomiting
  • Ringing or buzzing in your ears
  • Sudden weight gain or swelling in your face, arms, or legs
  • Severe fatigue that does not get better with rest

Call your local emergency number (911 in the US), or have someone else call if:

  • You have a seizure.
  • You have chest pain.
  • You faint or lose consciousness.
  • You have any of the following signs of a heart attack:
    • Squeezing, pressure, or pain in your chest
    • and any of the following:
      • Discomfort or pain in your back, neck, jaw, stomach, or arm
      • Shortness of breath
      • Nausea or vomiting
      • Lightheadedness or a sudden cold sweat

Call your doctor or obstetrician if:

  • You have a severe headache or vision loss.
  • You have weakness in an arm or leg.
  • You have fluid or blood leaking from your vagina that does not stop.
  • You feel a gush of fluid from your vagina.
  • You feel a change in your baby's movement, or you feel fewer than 6 to 10 movements in an hour.
  • You urinate less than usual or stop urinating.
  • You have severe abdominal pain with or without nausea and vomiting.
  • You have new or increased swelling in your face or hands, or sudden weight gain.
  • You have questions or concerns about your condition or care.


  • Medicine may be given to lower your BP. The dose of current BP medicine you take may be changed.
  • Ultrasounds are used to check your baby's growth and make sure he or she is healthy.
  • Delivery may be recommended. Delivery may stop preeclampsia. Healthcare providers may deliver your baby right away if he or she is full-term (37 weeks or more). You may need to deliver your baby early if you or the baby has life-threatening symptoms.

Manage hypertension during pregnancy:

  • Go to all scheduled appointments. Your healthcare providers will check your blood pressure and may order other tests.
  • Rest as directed. Your healthcare provider may tell you to rest more often if you have mild symptoms of preeclampsia.
  • Check your BP as directed if you have chronic hypertension. Sit and rest for 5 minutes before you take your BP. Extend your arm and support it on a flat surface. Your arm should be at the same level as your heart. Follow the directions that came with your BP monitor. Take your BP as often as directed. Keep a record of your BP readings and bring it to your follow-up visits.
    How to take a Blood Pressure
  • Do not drink alcohol or smoke. Alcohol, nicotine, and other chemicals in cigarettes and cigars can increase your BP. They can also harm your baby. Ask your healthcare provider for information if you currently drink alcohol or smoke and need help to quit. E-cigarettes or smokeless tobacco still contain nicotine. Talk to your healthcare provider before you use these products.
  • Eat healthy foods. Healthy foods can help control your BP. Healthy foods include fruits, vegetables, whole-grain breads, low-fat dairy products, beans, lean meats, and fish. Ask if you need to be on a special diet.
  • Exercise if directed. Exercise can help lower your BP. Ask your healthcare provider how much exercise you need and which exercise is right for you.
  • Do kick counts as directed. You may need to keep track of how often your baby moves or kicks over a certain amount of time. Ask your obstetrician how to do kick counts and how often to do them.
  • Check your weight each day. Weigh yourself every day before breakfast. Weight gain can be a sign of extra fluid in your body.
    Weight Checks THA

Follow up with your doctor or obstetrician as directed:

Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.