Fever During Pregnancy: Complete Guide to Risks, Care, and Prevention

When you are expecting, your body goes through many changes, and sometimes you might feel warmer than usual because of hormones or hot flashes. However, a true fever during pregnancy is different and needs careful attention. This is because it can signal an underlying infection or condition that could affect you and your baby.

Pregatips
It’s natural to worry when you have a fever during pregnancy. You might think it’s just a small thing, but even a mild fever can affect both you and your baby. Your body is already working hard to support a new life, and when it has to fight an infection or deal with inflammation, it can take a bigger toll than you might expect.
A fever happens when your body temperature rises above the normal range, which is usually around 98.6°F. Doctors consider it a fever if your temperature reaches more than 100°F. Taking the time to understand why fever happens during pregnancy, how it can affect you, and what steps you can take to manage it will help you feel more in control.


Why Fever Raises Concern During Pregnancy


During pregnancy, your body naturally adjusts your immune system to protect the growing baby. While this is amazing for the baby, it can also make you more prone to infections. A fever is actually your body’s way of fighting something off. But when it climbs high, especially early in pregnancy, it’s a sign worth paying attention to.

Mild fevers, often caused by a simple viral cold or a urinary tract infection, usually pass without major issues if you manage them carefully. But high or persistent fevers need quick medical attention, because they can sometimes point to a more serious problem that may need treatment.


How Fever During Pregnancy Affects Your Baby


A fever during pregnancy can carry some risks for the developing baby:

  • People who have a fever just before or during early pregnancy are more likely to have a baby with neural tube defects affecting the brain, spine, or spinal cord.
  • A temperature above 103°F in the first trimester may be linked to a higher chance of cleft lip and palate, congenital heart defects, and miscarriage.
  • Fever later in pregnancy may increase the risk of preterm labour.
  • Multiple untreated high fevers might be linked to autism risk, but the evidence is limited and inconclusive.


Common Causes of Fever During Pregnancy


Fevers during pregnancy rarely come from the pregnancy itself. Most of the time, they’re triggered by infections or other factors. These are some of the most common causes:

  • Respiratory viruses such as the common cold, flu, or COVID-19
  • Urinary tract infections (UTIs), including kidney infections (pyelonephritis)
  • Stomach virus or viral gastroenteritis
  • Food poisoning, often from viruses, bacteria like Listeria or Salmonella, or their toxins
  • Pneumonia
  • Tonsillitis
  • Ear infection
  • Genital infections


What Other Symptoms to Watch For Alongside Fever During Pregnancy


A fever rarely comes alone. These are important signs to watch for:

  • Chills or intense body aches
  • Shortness of breath
  • Back pain
  • Abdominal pain
  • Stiff neck
  • Severe headache, dizziness, or changes in vision
  • Burning sensation while urinating
  • Nausea, repeated vomiting, or diarrhoea (especially if food poisoning is suspected)
  • Vaginal discharge with a bad odour
  • Severe thirst, dark urine, or reduced urination
  • Reduced baby movements (particularly in later stages of pregnancy)
  • Rash, severe eye pain, or contractions/bleeding
If you notice any of these symptoms, it’s important to seek medical help immediately.

How to Manage Fever During Pregnancy

The first and most important step is to contact your doctor as soon as you notice a fever, even if it seems mild. Never ignore it or wait for it to pass on its own.

These are some safe ways to manage a fever in pregnancy:

  • Doctor-approved medication: Paracetamol is generally considered safe, but only take it at the dose your doctor recommends.
  • Lukewarm sponging: Helps gently reduce body temperature.
  • Light clothing and blankets: Avoid heavy layers and keep yourself cool but comfortable.
  • Avoid “sweating it out”: Trying to make yourself sweat does not help and can be dangerous.
  • Stay hydrated: Drink plenty of water and cold fluids, as fever increases fluid loss.
  • Rest: Give your body the energy it needs to fight the infection.
  • Antibiotics if needed: If the fever is caused by a bacterial infection, your doctor may prescribe antibiotics. Always follow their instructions carefully.

What to Avoid During Fever in Pregnancy

Certain medicines and activities can be harmful during pregnancy, especially when you have a fever.

Medications to skip unless advised by your doctor:

  • Ibuprofen or aspirin
  • Combination cold and flu syrups
  • Leftover antibiotics or any self-prescribed medicines (Self-medicating can cause more harm than good)
Activities that can raise your core body temperature too high:

  • Hot yoga or Bikram yoga
  • Exercising outdoors on very hot, humid days
  • Spending long periods in hot tubs

How to Prevent Fever During Pregnancy

The best approach is to reduce your chances of getting an infection in the first place. Your immune system works differently during pregnancy, so a few simple habits can make a big difference:

  • Wash your hands frequently and thoroughly, or use hand sanitiser when needed.
  • Stay away from people who are unwell whenever possible.
  • Eat healthy foods and get enough rest to support your body’s defences.
  • Get the annual flu vaccine, which is strongly recommended during pregnancy (avoid the nasal spray version).
Fever during pregnancy can feel worrying, but taking quick action and getting proper care usually keeps both you and your baby safe. Stay in regular contact with your healthcare professional throughout your pregnancy, as they can guide you every step of the way and give you the best support!

Whether you’re pregnant, a new mom, or navigating postpartum, you don’t have to do it alone. Join our support group to connect, share, and support one another.

FAQs on Fever During Pregnancy: Complete Guide to Risks, Care, and Prevention

  1. What home remedies are safe to try for a fever during pregnancy?
    Simple measures like using a cool compress, staying well hydrated, and sipping herbal teas are generally safe during pregnancy.
  2. How often should I check my temperature if I have a fever during pregnancy?
    Checking your temperature 2 to 3 times a day is usually enough to monitor trends.
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