UKMEC explained: how we decide what is safe for you

When a doctor decides whether a particular method is safe for you, they are not going on instinct. They are using a national framework called UKMEC, the UK Medical Eligibility Criteria for Contraceptive Use. It turns your medical history into a clear, evidence-based answer for each method.

Understanding it takes the mystery out of why you are offered one thing and not another. This article walks through how it works.

What UKMEC is

UKMEC is published by the Faculty of Sexual and Reproductive Healthcare, the professional body for contraception in the UK. It takes every relevant medical condition or characteristic, your age, blood pressure, migraine type, clot history, whether you smoke, whether you are breastfeeding, and many more, and rates how safe each contraceptive method is for someone with that feature. It is reviewed and updated as the evidence changes, and it is the same standard used across the NHS and private care alike. Crucially, it is based on evidence about safety, not on opinion or on what a particular clinic happens to stock.

The four categories

Every combination is given a number from 1 to 4.

UKMEC 1: no restriction. The method can be used freely.

UKMEC 2: the benefits generally outweigh the risks. The method can be used, usually without special precautions.

UKMEC 3: the risks usually outweigh the benefits. The method is not normally recommended unless other options are unsuitable or unacceptable, and only with careful clinical judgement.

UKMEC 4: an unacceptable health risk. The method should not be used.

Most people, most of the time, fall into category 1 or 2 for at least one good method, which is why nearly everyone can be offered something safe and effective.

How it works in practice

Each method is rated separately, so the same fact can score differently across methods. Migraine with aura is UKMEC 4 for the combined pill but UKMEC 1 for the progestogen-only pill. A personal history of blood clots is UKMEC 4 for the combined pill but does not rule out progestogen-only methods. This is exactly why, when one method is off the table, another is usually still safe.

Some common examples

Migraine with aura: combined pill UKMEC 4, progestogen-only pill UKMEC 1.

Age 35 or over and smoking 15 or more a day: combined pill UKMEC 4.

Previous DVT or pulmonary embolism: combined pill UKMEC 4, progestogen-only pill UKMEC 2.

Breastfeeding under 6 weeks after birth: combined pill UKMEC 4, progestogen-only pill UKMEC 1.

Well-controlled high blood pressure: combined pill UKMEC 3, progestogen-only pill UKMEC 1.

It covers every method, not just pills

Although this article focuses on the pill, UKMEC rates every method of contraception, from the combined and progestogen-only pills to the implant, the hormonal and copper coils, the injection, the patch, and the ring. That means even though we prescribe oral contraception at LoveMyLife, the same framework can tell you whether a method we do not fit would be safe for you, which is useful if you are weighing up a long-acting option to have fitted elsewhere on the NHS.

Where your blood pressure fits in

Blood pressure is the one measurement we will not prescribe a combined pill without, because raised blood pressure moves the combined pill up the UKMEC scale and is easy to miss without checking. For an online assessment you can usually use a recent home or pharmacy reading, and if you do not have one, a pharmacy will usually check it for free. It is a small step that prevents a real risk.

Why this is good for you

UKMEC is the reason a short, structured assessment can safely sort out your contraception, often without you needing to explain your whole history from scratch each time. Most of the work happens in the questionnaire before you speak to a doctor, so the conversation can focus on what you actually want. It also means the answer you get is consistent and evidence-based, not a matter of who you happened to see. None of this is about gatekeeping. It is about giving you a safe answer quickly, and being able to explain the reasoning behind it. If a method is not offered to you, UKMEC is usually the reason, and the doctor can show you exactly where your situation sits.

Ready to start?

If you want to move from reading to acting, the next step is a short, confidential assessment with one of our doctors. No judgement, no assumptions.

Begin your assessment at this link. Online or in person at Westfield London.