Vomiting and diarrhoea without fever

A short episode may follow a stomach infection, contaminated food, a medicine side effect, food intolerance, or another digestive trigger. The absence of fever does not show how serious fluid loss is. Warning features include a dry mouth, marked thirst, dizziness, unusual sleepiness, very dark urine, or passing urine less often. Abdominal pain that is severe or localised, blood in vomit or stool, repeated vomiting, or a swollen abdomen needs medical attention. Babies, older adults, pregnant people, and those with long-term illnesses can become unwell more quickly.

Take small, frequent sips of water or an oral rehydration solution; large drinks may trigger more vomiting. When fluids stay down, try bland foods such as rice, toast, bananas, or soup, then return gradually to normal meals. Avoid alcohol and very rich foods while symptoms continue. Wash hands with soap and water, avoid preparing food for others, and clean bathroom surfaces. Do not give anti-diarrhoeal or anti-vomiting medicines to a child without professional advice. Keep track of fluid intake, urine, stool changes, and how often you vomit.

Get urgent help for fainting, confusion, severe weakness, severe or worsening abdominal pain, blood or black stool, blood or green vomit, a swollen abdomen, or inability to keep fluids down. Seek prompt advice for signs of dehydration, symptoms after suspected poisoning, or illness in a young child, older adult, or pregnant person. Arrange review if vomiting or diarrhoea continues, returns repeatedly, or you are not gradually improving.

Tell the clinician when symptoms began, what you ate, recent travel, sick contacts, medicines, urine output, abdominal pain, and any blood or mucus. Ask whether you need testing, rehydration support, or medication changes.