General information, not an individual diagnosis. Ask a healthcare professional if you are unsure about your situation.
In adults, diarrhoea and vomiting cause losses of water and mineral salts. Replacing these losses and watching the person's general condition come first.
Drink more than usual, including water and salted broths. Temporarily choose smaller, lighter meals more often rather than a few large meals.
A dry mouth and little urine can suggest dehydration: contact a doctor immediately. An older person may feel little thirst.
If you cannot drink, seek medical advice that day. Do the same for diarrhoea with a chronic illness, immunosuppression or age over 75.
Call 15 or 112 promptly for dehydration with drowsiness or confusion, especially when an older person has stopped drinking. Do not delay the call.
For the medical discussion, note when symptoms began, stool frequency, drinks you can keep down, recent travel and any medicines you are taking.
Sources
Your health review
Review your health
Mon bilan prévention is an appointment to discuss your habits and choose your health priorities. Review the four age groups and practical information.