Key points
- Call promptly for very dark or little urine, dizziness, worsening vomiting, or weight loss.
- Contact Davie ObGyn about symptoms that affect your daily life.
When pregnancy nausea becomes severe
Hyperemesis gravidarum, or HG, is severe nausea and vomiting that makes it difficult to eat, drink, and manage everyday activities. It can cause dehydration, weight loss, and changes in important body salts called electrolytes. It is a medical condition, and needing treatment is not a personal failure.
Contact your OB when vomiting interferes with eating or drinking. You do not need to wait for significant weight loss before asking for help.
What treatment may include
Your clinician will review your symptoms, check for dehydration, and consider other causes of vomiting. Blood tests or other testing may be needed. Treatment can include pregnancy-appropriate anti-nausea medicines, fluids through an IV, and nutrition support. Vitamin B6 with or without doxylamine is a common starting option for pregnancy nausea; severe illness may need additional medicines. Prolonged vomiting may also require thiamine, a vitamin that protects the nervous system.
While arranging care, try small sips and small amounts of foods you tolerate. Cold foods may be easier if smells trigger nausea. Home measures should not delay treatment when you cannot keep fluids down. ACOG guidance
When to get help
Call promptly for very dark or little urine, dizziness, worsening vomiting, or weight loss. Seek urgent evaluation if liquids will not stay down or you feel faint. Vomiting blood, severe abdominal pain, confusion, or collapse requires emergency care.
Questions about your pregnancy? Contact Davie ObGyn in Davie, Florida, at 954-880-1010. New and established patients are welcome. This information supports your prenatal care and does not replace an individual medical assessment. For urgent symptoms, call your care team promptly; for an emergency, call 911. Do not use a routine online message for urgent symptoms.
Medically reviewed by Rahil Malik, MD, FACOG, board-certified obstetrician-gynecologist. Last reviewed: September 26, 2026. This page is general information and does not replace a visit with your doctor.