Travel insurance and pre-existing conditions
If you live with a health condition, travel insurance can feel like a minefield of forms and questions. But the rules here are actually quite straightforward once you understand the logic: insurers want a true picture of your health so they can price the cover fairly — and so your claim stands up when you need it. Here's how to get it right.
Why declaring matters so much
When you take out a policy, you're asked about your medical history. Answering fully isn't box-ticking — it's the foundation the whole policy rests on. If a condition you didn't declare later contributes to a claim, the insurer may reduce or refuse to pay, and in some cases the policy can be treated as if it never existed. The few minutes spent declaring honestly protect the very cover you're paying for.
It can feel uncomfortable to disclose, and yes, declaring can nudge the price up. But an accurately priced policy that pays out is worth far more than a cheaper one that doesn't. Think of declaration as buying certainty.
What actually counts as pre-existing?
Definitions vary between policies, so always read yours — but generally, insurers are interested in conditions you've had diagnosed, treated, monitored or medicated. Common examples include:
- Ongoing conditions such as heart, lung or circulatory problems, or diabetes.
- Anything you take regular medication for, or attend check-ups for.
- Conditions you've been investigated for, even if you're waiting on results.
- Mental-health conditions, which many policies specifically ask about.
- Recent surgery, or a condition you're recovering from.
If you're ever unsure whether something counts, the safe move is to declare it and let the insurer decide. You can't be penalised for over-disclosing; you can for the opposite.
Specialist cover, in general terms
Mainstream policies don't suit everyone. If a standard insurer can't offer the cover you need, or the terms don't work, there's a part of the market that focuses on travellers with medical conditions — including more serious or complex ones. These specialist providers ask more detailed medical questions and tailor the cover and price accordingly. In the UK there are also signposting services designed to point people who've struggled to find cover towards firms that may be able to help. We don't recommend specific companies, but it's worth knowing this part of the market exists, so a "no" from one insurer doesn't feel like the end of the road.
Working out what to look for? The cover checker helps you map your trip and circumstances to the cover that matters before you start comparing.
Honesty is the whole game
It's worth being blunt: the single biggest reason medical claims fail is an undeclared condition. The temptation to leave something off to save a little money is understandable, but it quietly removes the protection you're paying for. Be complete, keep a note of what you declared and the answers you gave, and have your medical details to hand when you apply — dates, diagnoses and medications make the process quicker and more accurate.
For the bigger picture on cover, exclusions and how to avoid a refused claim, see our guide to what travel insurance covers.