Diabetes Emergencies Abroad: What to Do and How to Be Ready

I've had one genuine diabetes emergency abroad.

A severe hypo in a taxi in Hanoi at two in the morning, with a driver who didn't speak a word of English. It resolved. It left me shaken. And it taught me things about managing diabetes while traveling that no pre-trip checklist had ever prepared me for.

DKA is the one I haven't had — and the one I fear most. Precisely because it builds slowly and quietly, in ways that are easy to explain away when you're exhausted, jet-lagged, and already feeling a little off. I've had the warning signs enough times to know how close the edge can feel.

Most of us who travel with diabetes spend a lot of time planning the ordinary — what to eat, how to keep insulin cool, how to get through TSA with our medical supplies — and not nearly enough time planning for the extraordinary. The moments when something goes genuinely wrong, far from home, where no one knows your history and the nearest ER is an hour away.

This article is about those moments: what they look like, what to do, and how to prepare so thoroughly that they're unlikely to happen at all.

👉 Eating abroad is one of the biggest variables in blood glucose management when you travel. If that side of things feels uncertain, our guide on eating abroad with diabetes covers everything from carb-counting in Japan to navigating restaurant menus when no one speaks English.

The two emergencies every diabetic traveler needs to prepare for

Severe hypoglycemia

Hypoglycemia abroad is more likely than it is at home. You're walking more than usual, eating at unpredictable times, miscalculating unfamiliar foods, and often drinking more than you would on a typical Tuesday. Any one of those things can push blood glucose lower than expected. Combined, they can do it fast.

Mild lows are manageable. A severe hypo — one where you lose the ability to treat yourself — is a medical emergency. The ADA defines severe hypoglycemia as an episode that requires assistance from another person, and it can cause seizures, loss of consciousness, and, if left untreated, be life-threatening.

Abroad, the risks multiply:

You may be alone.
The person next to you may not recognize what's happening.
Emergency services may take longer to reach you.
The paramedics may not speak English.

✅ What to do:

• Always carry fast-acting glucose on your person — not buried in your bag, on your body.
• Tell the people you're traveling with what a hypo looks like and exactly what to do. Don't assume they'll figure it out.
• If you're traveling solo, wear a medical ID. MedicAlert bracelets are recognized internationally and can communicate your condition to emergency responders even when you can't speak for yourself.
• Carry a glucagon emergency kit. In the US, Baqsimi (nasal glucagon) and Gvoke HypoPen (auto-injector) are both available by prescription and require no mixing or injection technique — far easier for a non-medical bystander to administer in a crisis.

👉 Our guide on TSA rules for diabetic travelers covers exactly what to pack in your carry-on — including glucagon kits and supplies — and your rights at the airport security checkpoint. 

Diabetic ketoacidosis (DKA)

DKA is the other end of the spectrum — too little insulin, not too much.

It builds more slowly than a severe hypo, which is precisely what makes it dangerous when you're on the road. You're tired, you feel a bit off, you figure it's the heat or the long travel day. And then you're in a foreign hospital getting an IV you weren't expecting.

The ADA describes DKA as a serious complication that occurs when the body starts breaking down fat for energy due to a lack of insulin, producing ketones that make the blood dangerously acidic. Symptoms include excessive thirst, frequent urination, nausea, vomiting, stomach pain, confusion, and breath that smells faintly of acetone — sometimes described as fruity or nail-polish-remover-like.

DKA requires hospital treatment — IV fluids and insulin. It cannot be managed alone in a hotel room. If you suspect DKA, seek emergency care immediately.

✅ What to do:

• Know the symptoms: excessive thirst, frequent urination, nausea and vomiting, stomach pain, weakness, confusion, acetone-smelling breath, and deep or labored breathing.
• The tricky part when you're traveling is that several of these — thirst, fatigue, frequent bathroom trips — are easy to write off as dehydration, heat, or jet lag. That's exactly why checking ketones whenever blood glucose is running persistently high matters so much, rather than waiting for symptoms to stack up.
• Pack ketone testing strips. They weigh nothing and can be the difference between catching something early and ending up in an ER.
• Check ketones any time your blood glucose is persistently elevated — especially if you're sick, or if your insulin has been exposed to heat.
• If ketones are moderate or high alongside symptoms, don't wait to see if it passes. Get to an emergency room.

The travel prep that changes everything

Know how to say it in the local language

Before you land anywhere, write down these phrases in the local language and save them to your phone:

"I have type 1 / type 2 diabetes"
"I need sugar"
"I need a doctor"
"I have glucagon in my bag"

Some travelers carry a printed medical card in the local language that summarizes their condition, medications, and emergency instructions. It sounds like overkill until you're the one who needs it. Google Translate works offline if you download the language pack before you leave — invaluable in a rural area with no cell service.

Know where to go if something goes wrong

Before you arrive anywhere new, spend five minutes identifying the nearest hospital with a full emergency department — not just an urgent care clinic, a real ER.

In many countries, particularly across Asia, Latin America, and parts of Eastern Europe, private hospitals provide faster, better-equipped care for foreign visitors than public ones, and your travel insurance will typically cover them. Save the address and phone number in your phone before you need it.

👉 Traveling with diabetes without the right insurance is a risk not worth taking. Our guide on travel insurance for diabetics breaks down exactly what to look for — including coverage for insulin loss, emergency hospitalization, and medical evacuation.

Know what bad insulin looks like

Heat damage to insulin is not always visible. There may be no color change, no smell, no obvious sign — your pen can look completely identical whether the insulin inside is fully active or completely degraded.

If your insulin has been exposed to temperatures above 86°F for a prolonged period, or if your blood glucose is running inexplicably high despite correct dosing, suspect the insulin before you suspect yourself.

👉 Everything worth knowing about keeping insulin at the right temperature on the road — from long-haul flights to beach days in extreme heat — is in our guide on how to keep insulin cool while traveling.

Travel insurance for Diabetes: not optional

I'll say this plainly: traveling with diabetes without specialist travel insurance is not a risk worth taking.

A DKA hospitalization in the United States can run $30,000 or more. Emergency medical evacuation from abroad can reach six figures. Standard travel insurance policies often exclude pre-existing conditions entirely — which means a diabetes-related emergency may not be covered at all unless you've declared your condition and purchased the right policy.

If you're a US traveler heading abroad, make sure your policy explicitly covers your diabetes — whether Type 1 or Type 2 — and look for these specifics:

• Explicit coverage of your pre-existing condition
• Coverage for lost, stolen, or damaged medication and supplies
• Emergency medical evacuation
• 24-hour medical assistance line

Always declare everything honestly. Non-disclosure can void your entire policy at exactly the moment you need it most.

👉 Crossing time zones adds another layer of complexity to insulin management that catches a lot of travelers off guard. Our guide on insulin across time zones is essential reading before any trip involving a significant time difference.

The diabetes emergency kit that belongs in your carry-on — always

Based on personal experience and ADA travel guidance, here's what I consider non-negotiable for every trip abroad with diabetes:

• Fast-acting glucose — in your pocket, not your bag
• A glucagon emergency kit (Baqsimi or Gvoke)
• Ketone testing strips
• At least twice the insulin you think you'll need
• A diabetes travel letter from your doctor confirming your condition, medications, and medical supplies
• Copies of all prescriptions
• Your travel insurance documents with the 24-hour emergency number — written somewhere analog, not just saved in a phone that might die
• A medical ID
• A medical-grade travel cooler if you use insulin, Ozempic, Mounjaro, or any other temperature-sensitive medication

👉 For a full pre-departure checklist covering medications, documentation, and getting through airport security, our complete guide to traveling with diabetes has everything in one place.

The bigger picture

Diabetes emergencies abroad are rare. With the right preparation, they're rarer still.

The goal of this article isn't to scare you out of going anywhere — it's the opposite. The more prepared you are, the more freely you can move. Preparation isn't the thing that limits your travel. It's the thing that makes it possible.

I've had one emergency in forty countries. It resolved. I've also had thousands of meals, hundreds of flights, and more extraordinary experiences than I can count. The preparation made the difference.

Don't let fear of the unlikely keep you from the extraordinary.

The information in this article is for informational purposes only and does not constitute medical advice. Always consult your doctor or diabetes care team before traveling with medication or making changes to your treatment plan.

💬 We Want to Hear From You!

Have you ever had a diabetes emergency abroad — or a close call that taught you something important? Maybe you've found a preparation strategy that made you feel genuinely confident traveling with Type 1 or Type 2?

Share it in the comments below. The more honestly we talk about the difficult moments, the better prepared everyone in this community becomes.