Health tech writing that's clear, careful and easy to read

Health tech writing has a tricky job. The same product page might be read by a worried patient late at night and by a busy clinician between appointments. The patient wants to know if this will help and if it's safe. The clinician wants to know what it does, what the evidence says and how it fits into their day. Get the words wrong and you lose both of them. This guide covers how to write for patients and clinicians at the same time, check every claim, avoid overpromising and agree who signs off before a page goes live.

Why health tech writing needs extra care

In other sectors, a fuzzy line costs you a sale. In health, it can mislead someone about their own body. Readers are deciding whether to trust you with their health, and with their data.

There's a rules side too. What you're allowed to say depends on what your product is. A simple tracker and a regulated medical device sit under different rules, and your copy has to match the one you've built.

How to write for patients and clinicians at the same time

You don't need two voices. You need one clear voice and two levels of detail.

The NHS writes its health content in one plain style, and its content guide says it uses the same style for health professionals. It aims for a reading age of 9 to 11, keeps sentences to 20 words or fewer, and puts the plain term first with the medical term after it, like "piles (haemorrhoids)". Clinicians are short on time. Plain words help them too.

Lead with what changes for the patient

Start with what the person can do, check or avoid. "Book a blood test near you and see your results in the app" beats "end-to-end diagnostic journey management". Then explain how it happens.

Give clinicians the detail one layer down

Clinicians want specifics: what the tool measures, what it doesn't, what evidence you have and how it fits their workflow. Put that in a clearly labelled section, a page for clinicians or a short downloadable summary. Make it easy to find, and keep it from crowding the patient page.

Explain medical terms the first time you use them

Some terms your readers need. A person with diabetes will want to know what HbA1c means, so keep the word and explain it in a short phrase: "HbA1c (a blood test that shows your average blood sugar over the last 2 to 3 months)".

Check every claim before it goes out

This is the biggest difference between health tech writing and other copy. Every claim needs proof you can point to.

A simple habit helps here. Keep a claims sheet: each claim on the page, the evidence behind it and who checked it. If a claim has no evidence, cut it or soften it until it's true.

Watch out for these:

• Words that suggest diagnosis or treatment. "Detects", "treats", "prevents" and "cures" are medical claims. The ASA's note on health apps explains that software which measures, analyses or interprets health data may count as a medical device in the UK, and the rules change with it.
• Pictures that make a claim for you. The same ASA note says people judge the whole ad, pictures included. A finger on a phone screen next to a heart rate can suggest your app takes a measurement, even when it only stores readings from another device.
• Comparisons. "Faster than waiting for a GP" or "more accurate than other apps" needs evidence you could show a regulator tomorrow.
• Absolute words. "Always", "never", "100% accurate" and "guaranteed" rarely hold up in health.
• Patient quotes. A patient saying your app changed their life is still a claim, and you need their clear permission to use it. Our guide on writing customer case studies covers how to ask.

Selling in the US or India too? The rules differ, so check each market with a regulatory adviser.

Don't overpromise, even by accident

Overpromising usually sneaks in through tone. Words like "breakthrough" or "life changing" sound exciting and make careful readers nervous.

Calm, specific lines earn more trust. "Keep your blood pressure readings in one place and share them with your doctor" is modest and true. "Take control of your heart health" promises more than an app can deliver.

Name the limits plainly and close to the benefit. "This app doesn't replace your doctor. If you feel unwell, contact your GP or call emergency services." It's the same balance we wrote about in how to write about money: put the risk in the same plain voice as the upside, right next to it.

Decide who signs off before a page goes live

Agree the sign-off chain before anyone starts writing, so nobody gets a late surprise. A simple chain for a health tech team looks like this:

• The writer drafts the page in plain words and fills in the claims sheet.
• A clinician checks the clinical facts and safety. The NHS has qualified clinicians check its clinical information, and that's a good standard to copy.
• Regulatory or legal checks each claim against the rules for your product and your markets.
• The product lead confirms the product does what the page says, today, without features that haven't shipped yet.
• One named owner gives the final yes and keeps the claims sheet up to date.

Agree how long each review should take, so pages don't sit in someone's inbox for weeks. And check the page again whenever the product, the evidence or the rules change.

A quick before-and-after for health tech pages

These are made-up examples, but you may recognise the "before" versions.

A blood pressure app

Before: "Intelligent cardiac insights that transform how you manage heart health."

After: "Log your blood pressure readings, keep them in one place and share them with your doctor before your appointment."

A page for clinicians

Before: "Clinically proven to improve outcomes."

After: "In [named study], [what was measured] changed by [amount] over [time period]. Read the full study here."

Health tech writing: FAQ

Why is plain language important in healthcare communication?

People need to understand health information to act on it safely. Plain words, short sentences and clear next steps help patients follow advice, and they save clinicians time as well.

How do you write medical information in plain English?

Start with what the reader needs to know or do. Use everyday words, explain each medical term the first time it appears, keep sentences short and test the page with people like your readers.

Can a health app make medical claims?

In the UK, only if it's a licensed medicine or a medical device with the right marking and registration, and the claim is backed by evidence. If you're not sure where your app sits, check with the MHRA or a regulatory adviser before you publish.

Who should sign off health content?

At least a clinician for the clinical facts and someone who knows the rules for your product. Then name one person who gives the final yes.

Want a hand with your health tech copy?

We help health tech teams write pages that patients understand and clinicians respect, with every claim checked before it goes live. Have a look at our services, or email hello@markivasolutions.com with a link to your site. We'll come back with a few thoughts or a clear quote.