Travel health

Travel health

New food, new water, new bugs: most visitors to Thailand meet Bangkok belly sooner or later. Here's what's actually going on, and when a short clinic visit beats toughing it out in a hotel room.

  • 30–70%

    Travelers get TD

  • 3–5 days

    Typical course

  • Same day

    Walk in, be seen

  • TH·EN·ZH

    Spoken here

Medically reviewed by Dr. Noppon Arunkajohnsak (Win)

MOPH-licensed clinic

4.6 from 158 Google reviews

92% five-star ratings

Private & confidential

Signs

  • Loose, urgent stools within days of arrival

  • Stomach cramps and bloating

  • Nausea, sometimes vomiting

  • Low-grade fever and fatigue

  • Signs of dehydration: thirst, dark urine, dizziness

Common causes

  • Bacteria in food or water, the most common

  • Viruses picked up in transit and hotels

  • Parasites such as giardia, usually on longer trips

  • Street food, ice and raw dishes

  • Heat, alcohol and a sudden change of diet

When to see a doctor

  • Blood or mucus in the stool

  • Fever above 38.5°C or shaking chills

  • Symptoms lasting more than three days

  • You can't keep fluids down

  • You have a flight or onward travel coming up

Understanding the condition

Common, usually short, occasionally serious

Travelers' diarrhea is usually bacterial: unfamiliar strains in food or water that your gut hasn't met before. Ice, salads, street food and even hotel buffets can carry them, and no amount of caution makes you immune.

Most cases settle on their own within 3–5 days. The job of treatment is to keep you hydrated, calm the cramps and nausea, and catch the minority of cases, the ones with fever, blood or persistence, that need testing and targeted medication.

Self-treating off a pharmacy shelf is where travelers go wrong. The wrong antibiotic, or an anti-diarrheal at the wrong moment, can make some infections worse. A quick assessment gets you the right thing for what you actually have.

Most travelers ride it out alone in a hotel room. A short visit tells you whether this settles by itself or needs proper treatment, and gets you comfortable either way.
Dr. Noppon Arunkajohnsak (Win)

Our solutions for travelers' illnesses

Relief, matched to the symptom

We work out what's driving it first, then treat the symptoms that are wrecking your trip. Each links to the full guide.

For diarrhea

Loperamide

Slows the gut so you can get through a flight or a travel day. For watery diarrhea without fever or blood.

Read the guide

For cramps

Hyoscine butylbromide

An antispasmodic that eases the stomach cramps that come with gut infections and food reactions.

Read the guide

For nausea · Rx

Ondansetron

Stops persistent nausea and vomiting so fluids stay down. Prescribed once the doctor has ruled out anything serious.

Read the guide

Your journey

What happens when you come in

1. Same-day consult

Walk in or book, usually seen the same day. Tell us what you ate, where you've been and how long it's lasted.

2. Tests if needed

Most cases need none. Fever, blood or symptoms past three days call for stool tests and bloods, so treatment targets the actual bug.

3. Your plan

Rehydration, symptom relief and, when tests justify it, targeted medication from the in-clinic pharmacy. You leave with everything you need.

4. Follow-up until you're well

A check-in a few days later, in person or by message. If you're flying out, the doctor checks you're fit to travel first.

Meet the doctors

Who you'll see

Young, specialized and highly experienced, trained internationally. The same doctor from consult to follow-up.

Dr. Noppon Arunkajohnsak (Win)

Dr. Noppon Arunkajohnsak (Win)

Board-certified Urologist

Dr. Pasin Limudomporn (Ao)

Dr. Pasin Limudomporn (Ao)

Board-certified Urologist

Dr. Cheevathun Theeraratvarasin (Big)

Dr. Cheevathun Theeraratvarasin (Big)

Board-certified Urologist · Prostate care

What our patients say

Menscape Clinic Bangkok consultation room

Book your consultation today.

Medications & pharmacy

Love that Menscape has an in-clinic pharmacy. After my consultation with Dr. Big, I walked out with my prescription filled. No need to hunt for a pharmacy or worry about getting the right medication.

Keith Morrison · Verified patient review

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Frequently asked questions

Is it Bangkok belly or something more serious?

Most cases are mild infections that settle in 3–5 days. Blood in the stool, fever above 38.5°C, severe pain or symptoms running past three days are the flags that need a doctor, and usually a stool test.

Can't I just buy antibiotics at a Thai pharmacy?

You can, but self-prescribing is where travelers get it wrong. Many cases are viral and antibiotics do nothing, and the wrong one can worsen certain infections. If you need one, a doctor picks it based on your symptoms or test results.

Is it safe to take loperamide?

Usually, yes, for watery diarrhea without fever or blood, especially before a flight or a long bus ride. It's the wrong choice when there's fever or blood in the stool, because slowing the gut can keep the infection in. When in doubt, ask first.

I'm flying out soon. Can you get me travel-ready?

That's one of the most common reasons travelers come in. Same-day assessment, rehydration advice and medication to control symptoms through the flight. If something needs testing, results usually come back fast enough to act before you leave.

Do I need an appointment or can I walk in?

Walk-ins are welcome, but booking secures your slot and keeps waiting to a minimum. Same-day appointments are usually available.

Get back to enjoying your trip

Get back to
enjoying your trip
Illustration of an online doctor consultation room at Menscape Clinic Bangkok