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Severe vomiting in pregnancy (hyperemesis gravidarum)

Also called: Hyperemesis gravidarum, severe vomiting in pregnancy

Severe nausea and vomiting in pregnancy causing weight loss and dehydration. It needs treatment, sometimes IV fluids.

SignsCan't keep food or fluids down
TreatmentMedicines, IV fluids

Symptoms

Common signs:

  • Severe vomiting in pregnancy
  • Severe vomiting during pregnancy

Less common

  • Weight loss
  • Dizziness

When to get medical care

Call 911Fainting or confusion.
Get care todayCan't keep fluids down for 12 hours.
See a doctor soonWeight loss.

Causes

Pregnancy hormones.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Twins
  • Past HG

Diagnosis

Your team checks weight and fluids.

Tests

Tests, if needed:

  • Urine and blood tests:

Treatment

Get help early.

Self-care

  • Small sips often

Medicines

Medicines that may help:

MedicineHelps withGood to know
Anti-nausea
Nausea

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to an OB-GYN or midwife; high-risk pregnancies may see a maternal-fetal medicine doctor.

Outlook

Usually improves by 20 weeks.

Getting ready for your visit

Bring a list of your symptoms and medicines.

What to bring

  • A list of your medicines and supplements
  • Notes on when symptoms started and what makes them better or worse

Questions to ask

  • What's causing my symptoms?
  • What treatment do you recommend?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Severe vomiting in pregnancy (hyperemesis gravidarum)

Sources

Last updated 2026-11-12.