Your GP refers you to a surgeon. You Google their name. You find positive reviews and an impressive-looking Harley Street profile. You proceed. This is how most people choose a surgeon in the UK.
It's also entirely inadequate for a decision of this magnitude.
The metrics that actually matter
Procedure volume. How many of your specific operation does this surgeon perform annually? Not "shoulder surgery" — your exact procedure. A surgeon doing 150 rotator cuff repairs per year will, on average, outperform one doing 30. The volume-outcome relationship is one of the most robust findings in surgical research.
Published outcome data. For many procedures in the UK, individual surgeon outcomes are publicly available through national audits. Hip and knee replacement outcomes, cardiac surgery mortality rates, bariatric surgery complication rates — this data exists. If your surgeon's procedure isn't audited, ask them directly for their personal outcome data.
Complication rates versus national average. Every surgery has a complication rate. The question is whether your surgeon's rate is above or below the national benchmark. This is a reasonable question that any competent surgeon should be willing to answer.
Red flags most patients miss
A surgeon who discourages second opinions. A surgeon who can't or won't share outcome data. A surgeon whose recommendation doesn't mention non-surgical alternatives. A surgeon who is visibly rushed and spends minimal time understanding your specific concerns.
None of these are disqualifying on their own. But together, they paint a picture of a practice that isn't centred on informed patient decision-making.
The referral trap
In the NHS, you typically don't choose your surgeon — you're allocated one. Privately, your GP may default to "the person I always refer to." Neither mechanism optimises for the best surgeon for your specific condition.
What I do for clients is research the specific procedure, identify the surgeons with the highest volumes and best published outcomes for that exact operation, and then facilitate an informed choice. The difference this makes is not marginal. Here are the questions to ask once you're in the room.