How do I tell if it's Bali Belly or food poisoning?

Timing is key. Bali Belly often starts 1–3 days after exposure; toxin-related food poisoning can start within hours. Severe vomiting early on suggests toxins.

Do I need antibiotics?

Not always. Many cases improve with hydration and rest. Antibiotics are only used when indicated after clinical assessment.

When should I see a doctor?

>48 hours of symptoms, blood in stool, high fever (>38.5°C), or signs of dehydration warrant medical review.

Bali Belly vs Food Poisoning: Key Differences & What to Do (2025)

TL;DR

Bali Belly (traveler's diarrhea) usually starts within 1–3 days after exposure and often improves within a couple of days with rest and rehydration. Food poisoning can start within hours (especially toxins) and may bring more intense vomiting. Seek medical help if symptoms are severe, last >48 hours, there's blood in stool, high fever, or signs of dehydration.

Onset & Common Triggers

Bali Belly

Bacteria/virus/parasites from food or water
Onset: 1–3 days

Food Poisoning (Toxins)

Pre-formed toxins (e.g., Staph, Bacillus cereus)
Onset: 30 min–6 hours, prominent vomiting

Symptoms at a Glance

Feature	Bali Belly	Food Poisoning
Onset	1–3 days	30 min–24 h
Vomiting	Common	Often prominent (early)
Fever	Mild/none	Variable
Duration	1–3 days (mild)	Hours–2 days (toxins)

What to Do First

1
Start ORS (oral rehydration salts) small sips.
2
Rest; bland foods (bananas, rice, toast, clear soup) when able.
3
Anti-nausea and anti-diarrheal medicines may help—follow medical advice.

Not sure which one you have?

Our GP can assess and treat you at your villa/hotel anywhere in Bali (2–4h response).

Book a doctor