For healthcare professionals
Earlier recognition. Better treatment. Safer care.
Access current guidance, evidence summaries and practical resources to support the recognition, assessment and treatment of nausea and vomiting in pregnancy and hyperemesis gravidarum.
Recognition and treatment
Recognise the spectrum. Treat the person, not a test result.
- 1
Pregnancy sickness can cause significant impairment before it meets the definition of HG. Severe nausea alone can meet the international definition of HG; frequent vomiting is not required.
- 2
Ketonuria is not an indicator of dehydration and should not be used to assess the severity of NVP or HG.
- 3
Anti-sickness medication should be offered when required. Different medication classes may be combined when one treatment is not enough.
- 4
Thiamine should be given to women admitted with vomiting or severely reduced intake, particularly before dextrose-containing fluids.
Based on RCOG Green-top Guideline No. 69 and the Windsor Definition.
Core guidance
Use the evidence at the point of care.
RCOG Green-top Guideline No. 69
UK guidance covering nausea and vomiting in pregnancy and HG across community, ambulatory day care and inpatient settings.
Open the RCOG guidelinePregnancy sickness and HG patient leaflet
A clear patient-facing guide to recognising symptoms, understanding when pregnancy sickness may be HG and seeking appropriate care.
Download patient leafletSymptoms and Diagnosis
Patient-facing information explaining the pregnancy-sickness spectrum, HG diagnosis, clinical assessment, severity tools and why urine ketones should not determine care.
View Symptoms and DiagnosisTreatment and Management
Patient-facing information on treatment across pregnancy sickness and HG, including medication, fluids, thiamine, ambulatory care and inpatient treatment.
View Treatment and ManagementUse in practice
Clear tools for clearer conversations.
Our patient resources can support symptom recording, preparation for appointments and shared conversations about care.
One-page care-setting algorithms
Four one-page clinical algorithms summarising recognition, assessment and treatment across each care setting.
Education and collaboration
Help make evidence-led care routine.
We want to work with healthcare professionals who are committed to improving recognition, treatment, pathways, education, research and standards across pregnancy sickness and HG.
Contact The HG Collective