How long does diarrhoea from food poisoning last?

Diarrhoea from food poisoning often improves within a few days, but the duration depends on the germ, toxin, and your health. Vomiting may settle sooner, while bowel movements can remain loose as the intestine recovers. A gradual reduction in frequency and an ability to drink are reassuring signs; ongoing deterioration needs medical advice.

The cause, amount of contamination, age, immune function, and existing bowel conditions can all affect recovery. Diarrhoea may occur with abdominal cramps, nausea, vomiting, or fever. Symptoms alone cannot reveal whether bacteria, a virus, a parasite, or a toxin is responsible. A clinician may consider testing if symptoms are severe, prolonged, bloody, or linked to a vulnerable patient.

Sip water or Oral Rehydration Therapy regularly rather than waiting until thirst is strong. Eat small, plain meals when able and avoid foods that clearly worsen symptoms. Wash hands with soap and water, clean bathroom surfaces, and do not prepare food for others while diarrhoea or vomiting continues. Avoid taking antibiotics without a clinician’s advice.

Get prompt medical help for blood in stool, severe abdominal pain, repeated vomiting, faintness, confusion, very little urine, or inability to drink. Seek advice if diarrhoea is not steadily improving, returns after initial recovery, or occurs with significant fever or weakness. Children, older adults, pregnant people, and immunocompromised patients should be assessed earlier if fluid intake or urine falls.

Ask how long your pattern can reasonably be watched, which rehydration drink is suitable, and whether stool testing is needed. Share how often you pass stool, whether it contains blood, what you can drink, and any recent antibiotics or travel.