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Stomach Pain – Medical Care for Tourists in Japan

Stomach Pain in Japan – Guide for Tourists

Stomach pain, nausea, and diarrhea are among the most common travel issues. This guide explains likely causes, warning signs, and how to find English-speaking medical care in Japan.

Common Causes

  • Food-related upset. Unfamiliar ingredients, raw fish, or rich meals can irritate sensitive stomachs.
  • Food poisoning. Sudden vomiting or diarrhea within hours of a meal suggests bacterial contamination.
  • Traveler’s diarrhea. Common during the first days of travel due to diet and environment changes.
  • Travel fatigue and stress. Jet lag, dehydration, and long days can trigger gastritis-like symptoms.

When to See a Doctor

Mild symptoms often resolve in 24 hours with rest and hydration. See a doctor promptly if you experience:

  • Vomiting or diarrhea lasting more than 24 hours, or signs of dehydration (dizziness, dark urine).
  • Blood in stool or vomit.
  • High fever alongside abdominal pain.
  • Severe, localized pain — especially in the lower right abdomen (possible appendicitis).

For severe pain or signs of serious illness, call 119 or go to an emergency department.

Over-the-Counter Options at Japanese Drugstores

For mild symptoms, Japanese drugstores carry several familiar and local options:

  • Seirogan (正露丸). A traditional Japanese remedy for diarrhea and stomach discomfort.
  • Stopa, Seirogan Quick, Biofermin. Modern anti-diarrheal and probiotic options.
  • OS-1 or Pocari Sweat. Oral rehydration drinks to replace fluids and electrolytes.
  • Gasuta, Ohta’s Isan. Antacids for simple indigestion and heartburn.

Show the pharmacist your symptoms — many stores have pictorial symptom charts and some staff speak basic English.

Finding a Clinic

If symptoms are severe or don’t improve, an internal medicine (naika) clinic is your best first stop. Look for clinics that explicitly welcome international patients.

Online Consultation Option

If you’d rather not travel while feeling unwell, online consultations with doctors are increasingly available in Japan and are well suited to non-urgent symptoms. A doctor can assess your situation remotely and recommend next steps.

Find a Doctor Near You

Find Care in Your City

Our city-specific guides list English-speaking clinics and practical information for international visitors:

Insurance & Cost

Without Japanese health insurance, expect the following general ranges:

  • Initial consultation: ¥5,000 – ¥15,000
  • Stool test or basic blood work: ¥3,000 – ¥10,000
  • Medication: ¥1,500 – ¥5,000

Keep receipts for your travel insurance claim and request an itemized bill (ryoshusho) in English if needed.

Frequently Asked Questions

Q. Is Japanese tap water safe to drink?
Yes. Tap water in Japan meets drinking water standards and is generally considered safe throughout the country. Stomach issues are more often caused by food or travel fatigue than water.
Q. Can I buy anti-diarrheal medicine without a prescription?
Yes. Drugstores carry Seirogan, Stopa, and other over-the-counter options. The pharmacist can suggest a suitable one based on your symptoms.
Q. When should I go to a hospital instead of a clinic?
Go to a hospital emergency department for severe pain, blood in stool, very high fever, or sharp pain in the lower right abdomen.
Q. Will a doctor speak English?
Many clinics in central Tokyo, Osaka, and Kyoto offer English support. International clinics typically have fully English-speaking staff.
Q. Can travel insurance cover stomach issues?
Most policies do. Keep itemized receipts, and if your insurer has a cashless network, ask the clinic whether they can bill your insurer directly.

Need a Doctor for Stomach Pain?

TravelCare.jp helps international visitors connect with English-speaking doctors across Japan. If you’re unwell, get guidance from a medical professional today.

Find a Doctor Near You

TravelCare.jp provides navigation and information only. We do not offer medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider for your specific situation.