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CHC and obesity — DFSRH MCQ

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ModerateCombined hormonal contraceptionCHC and obesityDFSRH

A 24-year-old nulliparous woman wants the combined vaginal ring for predictable bleeds. She has a BMI of 37 kg/m2, blood pressure 118/72 mmHg, no migraine, no diabetes and no smoking history. What is the UKMEC category for this method?

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Correct answer: E — UKMEC 3

BMI of 35 kg/m2 or above is UKMEC 3 for CHC because VTE risk is increased and usually outweighs the benefit of oestrogen-containing contraception. UKMEC 2 would be more appropriate for lower obesity thresholds without other risk factors. Continuous use changes bleeding pattern rather than thrombotic eligibility.

Reference: FSRH UKMEC; FSRH Guideline Combined Hormonal Contraception