The reasoning: WHO Medical Eligibility Criteria (6th edition, November 2025)
| MEC category | Meaning | Clinical judgement available | Limited clinical judgement |
|---|---|---|---|
| 1 | No restriction | Use | Use |
| 2 | Advantages generally outweigh risks | Use | Use |
| 3 | Risks usually outweigh advantages | Not usually recommended | Do not use |
| 4 | Unacceptable health risk | Do not use | Do not use |