Low Blood Pressure During Pregnancy: Causes, Symptoms and Treatment

Low blood pressure during pregnancy is normal but women must report this to their doctor to avoid possible complications.

Chanchal Sengar
Written by: Chanchal SengarPublished at: May 05, 2022Updated at: May 05, 2022
Low Blood Pressure During Pregnancy: Causes, Symptoms and Treatment

Most pregnant women experience low blood pressure during pregnancy which is absolutely normal. Due to changes in a woman’s body, blood pressure can get affected which can cause both low and high BP during pregnancy. Generally, low blood pressure occurs during the first and second trimester but if this continues till the third trimester, it is a matter of concern. Low BP can be easily tackled at home with some simple remedies but if your BP gets too low or too often, you must consult your gynaecologist to understand why it is happening and how this issue can be resolved.

What causes low blood pressure during pregnancy?

There are many reasons why a pregnant woman suffer from low blood pressure or hypotension. As per Dr. Suresh Kumar Panuganti, Lead Consultant - Pediatric Critical Care and Pediatric, Yashoda Hospitals Hyderabad, fluctuating hormones, increasing weight on the body due to growing baby in the womb, stress, anxiety, etc. are some potential reasons. Frequent blood pressure fluctuations are not healthy for both mother and baby, so, the doctor always checks BP of the pregnant woman during each visit. This also helps in preventing preeclampsia.

Changes in blood pressure during pregnancy can be caused due to:

  • Changes in energy levels
  • Different time of the day
  • Stress and anxiety levels
  • Lifestyle
  • Changes in circulatory system
  • Standing up suddenly and abruptly
  • Taking hot water bath for long times

These are some common factors that cause low blood pressure during pregnancy. Generally, these cause low blood pressure in the first 24 weeks or until second trimester. Since the uterus is growing, blood vessels also expand to provide needful blood to the uterus. The other less-common causes of low blood pressure during pregnancy include:

Low blood pressure during pregnancy

  • Dehydration
  • Anemia
  • Internal bleeding
  • Infections
  • Allergic reactions
  • Poor nutrition or malnutrition
  • Prolonged bed rest
  • Heart conditions
  • Endocrine disorders

Besides, certain medications also affect blood pressure making it either drop or rise suddenly. In such cases, pregnant women must consult their doctor to change the medicine. If your blood pressure becomes too low, you should immediately get yourself checked as this could be a sign of pregnancy complication.

Also Read: 8 Best Foods To Raise Low Blood Pressure

What are the symptoms of low blood pressure during pregnancy?

In normal cases, low blood pressure during pregnancy is okay and you need not get concerned about it. But if a pregnant woman exhibit certain symptoms like the ones mentioned below, it might need medical assistance. These are:

Low blood pressure during pregnancy

  • Nausea
  • Confusion
  • Dizziness
  • Lightheadedness
  • Fainting after standing up
  • Feeling fatigued throughout the day
  • Breathing problems
  • Feeling thirsty
  • Blurry vision or double vision
  • Pale and cold skin

If you experience these symptoms, it needs to be reported to the doctor. Do not take these symptoms lightly as it might hamper both mother and baby’s health.

How does low blood pressure in pregnant woman affect the baby?

Any health issue that you experience during pregnancy is directly linked to the health of the baby in your womb. Here are some of the risks that you need to watch out if you are diagnosed with low blood pressure during pregnancy:

  • Do not stay alone as fainting episodes during low blood pressure might cause you falling. This is dangerous for the baby.
  • Fainting and falling can cause injuries both internal and external. Internal injuries may lead to bleeding and obstructed blood circulation.
  • Long-term low blood pressure can even cause organ damage and shock. 
  • This may also obstruct blood supply to the uterus that can hamper development of baby in the womb.
  • There are chances of stillbirth during to low blood pressure or hypotension during pregnancy.


Low blood pressure during pregnancy is normal if the woman doesn’t experience sever symptoms as mentioned in the article. Do not take any problem lightly as this can affect both mother and the child.

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