What to Do If the Groom Gets Hurt or Sick on His Stag Do

Nobody wants to think about it, but on a weekend built around drink, activities and high spirits, someone — sometimes the groom — gets hurt or unwell. And because the groom has a wedding looming, the stakes are higher than on a normal weekend: a serious injury or a missed flight home is a genuine crisis, not just a bad night. Knowing what to do, and having prepared for the possibility, is part of the best man’s real responsibility. Here’s how to handle it.

The best man is the responsible adult

It’s worth naming the role plainly. Amid the carnage, someone has to be the responsible adult who keeps the group, and especially the groom, safe — and that’s you. This doesn’t mean being a killjoy; it means being the one who’s prepared, who notices when something’s wrong, and who knows what to do when it does. The whole weekend is a celebration, but the groom needs to arrive at his wedding in one piece, and ensuring that is a duty that sits with the best man whether he asked for it or not.

Step 1: Assess and give basic first aid

When something happens, the first job is to stay calm and assess. Most stag mishaps are minor — a cut, a sprain, someone who’s had too much and feels rough — and your emergency kit (plasters, first-aid basics, rehydration, sick bags) handles these. Deal calmly with the small stuff: clean and cover a cut, get fluids into someone who’s overdone it, find a quiet spot for someone who feels ill. A calm best man with a kit defuses most situations on the spot.

Step 2: Know when to escalate to medical help

The critical skill is recognising when something is beyond a plaster. For anything serious or that you’re genuinely unsure about, get professional medical help without hesitation — it’s always better to over-react than under-react. Be especially alert to:

• Head injuries — never dismissed, never “slept off.” Any significant bang to the head warrants medical attention.
• Severe or worsening illness — not just a hangover, but genuine, persistent sickness.
• Anything involving a lot of alcohol and unconsciousness — a person who can’t be roused is a medical emergency, not someone “sleeping it off.”
• Anything you can’t confidently assess — if in doubt, get help.

Don’t let the drink or the not-wanting-to-spoil-the-weekend instinct delay getting proper help when it’s needed. A few hours of a ruined night is nothing against the alternative.

Step 3: Have insurance and documents ready — especially abroad

This is where preparation matters most, and where the financial stakes are real. On a stag abroad, every guest and the groom must have valid travel insurance, and you should know how to access it. Medical treatment overseas without cover can run to thousands of pounds, and the consequences of an uninsured serious injury abroad are genuinely life-altering.

A high-visibility warning that is squarely a money-and-life issue: never let anyone, least of all the groom, travel abroad for a stag without proper travel insurance. A GHIC or EHIC card covers some state healthcare in some countries but is not comprehensive and does not replace insurance — it won’t cover repatriation, private treatment, or much of what a serious incident requires. Crucially, check the policy actually covers your activities: many standard policies exclude “extreme” or adventure sports, so a stag built around quad biking, watersports or anything adrenaline-fuelled may need specific cover. Medical bills abroad without insurance can be financially ruinous — tens of thousands of pounds for a serious injury and repatriation is not unusual. Based on internal 2026 transaction data across thousands of group trips, the catastrophic financial events on stags are not blown budgets — they are uninsured medical incidents abroad. Insist everyone is insured for the activities planned, and carry the groom’s policy details and emergency numbers. This one is non-negotiable.

Step 4: Assign a sober lookout

Prevention beats cure. At any given time across the weekend, have someone relatively sober designated to keep an eye on the groom and the group — a rotating role so nobody has to stay dry all weekend, but always *someone*. The sober lookout catches problems early: the groom who’s had too much before it becomes dangerous, the lad wandering off alone, the situation escalating. A group where everyone is equally hammered is a group with no one watching; a designated lookout is cheap insurance against the worst happening unnoticed.

Step 5: When in doubt, protect the wedding

The guiding principle for every judgement call: the wedding comes first. When you’re unsure whether to push on with an activity, let the groom do one more risky thing, or call it a night, err on the side of caution every time. A cancelled activity, an early night, a skipped final venue — these are nothing against a groom who turns up to his wedding injured, or worse. The whole point of the stag is to celebrate the wedding, so never let the celebration jeopardise the event it exists for. A slightly tamer weekend with the groom safe and well beats a wilder one with him hurt.

The bottom line

A groom getting hurt or sick is the scenario every best man hopes to avoid and must be ready for. Stay calm and handle the minor stuff with your kit, recognise when something needs professional medical help and get it without delay (head injuries and unrousable drunkenness especially), and — abroad — make sure everyone has proper travel insurance that covers the activities, because an uninsured medical emergency overseas is the one truly ruinous risk on a stag. Keep a sober lookout, carry the key details, and when in doubt, protect the wedding. Be the responsible adult amid the carnage, and you’ll get the groom home safe and ready for the big day — which is the most important job you have.