Hyperemesis gravidarum: care for severe pregnancy vomiting
Evaluation and individualized care for patients with severe pregnancy vomiting, dehydration, weight loss, insomnia, excessive salivation, or a previous pregnancy severely affected by hyperemesis gravidarum.
Previous pregnancy ended because of severe HG?
If a previous wanted pregnancy was affected or ended because the vomiting became physically intolerable, early evaluation before or at the beginning of the next pregnancy may be especially important.
What to tell us about your symptoms
Describe eating and drinking, vomiting, weight changes and previous treatment. Also tell us about sleep, excessive salivation and emotional distress.
Discussing treatment options
For the compound regimen described by Dr. Fenglin Chen, ask during consultation about ingredients, evidence, risks and suitability. The treating clinician determines the individual care plan.
Assessment, consultation and follow-up
Complete the initial assessment or English baseline form. The self-assessment can help organize symptoms.
Your information is reviewed before consultation so the discussion can focus on the most important issues.
Use the daily follow-up form as directed after consultation.
Hyperemesis gravidarum vs morning sickness
Morning sickness describes nausea and vomiting in pregnancy. HG is the severe form that disrupts daily activities and normal eating and drinking. Severity involves more than a vomiting count.
When to seek medical care for severe pregnancy vomiting
Seek prompt local assessment if fluids or oral medicines will not stay down, urine becomes dark, or weight falls rapidly. Online assessment cannot replace urgent care.
HG treatment and consultation questions
Clinical care may include fluids, anti-sickness treatment and nutritional support. Ask your treating clinician about the appropriate plan. Bring medication names, response, pregnancy dates and previous HG records to your consultation.
Planning another pregnancy after severe HG
Use the initial assessment to share your previous experience and discuss consultation and follow-up arrangements.
General medical information: RCOG patient information. Updated October 14, 2026.
Need help with severe or recurrent HG?
Complete the initial assessment before consultation.
Complete the HG Assessment Form
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Dr. Chen’s perspective: severe morning sickness vs hyperemesis gravidarum