TY - JOUR T1 - Bone mineral density in progestogen-only implant and pill users with amenorrhoea: a pilot study JF - BMJ Sexual & Reproductive Health JO - BMJ Sex Reprod Health DO - 10.1136/bmjsrh-2021-201184 SP - bmjsrh-2021-201184 AU - Rebecca L Heller AU - Sharon Cameron AU - Anne Johnstone AU - Rosemary Cochrane AU - Anna Glasier Y1 - 2021/08/23 UR - http://jfprhc.bmj.com/content/early/2021/08/23/bmjsrh-2021-201184.abstract N2 - Although there is good evidence that the progestogen-only injectable is associated with a decrease in bone mineral density (BMD), there is a lack of data pertaining to lower dose progestogen-only methods.1 2 The recent guidance from the Clinical Effectiveness Unit of the Faculty of Sexual and Reproductive Healthcare advises that current evidence is too limited to confirm or exclude an association between implant use and a reduction in BMD.3Amenorrhoea results from suppression of ovarian follicle growth and of oestrogen secretion.4 It is therefore possible that amenorrhoeic women using any systemic progestogen-only contraception that suppresses ovarian activity may be more at … ER -