The mnemonic
Unopposed oestrogen
What each word stands for
- ObesityPeripheral conversion of androgens to oestrogen
- NulliparityFewer protective progesterone phases
- Late menopauseLonger oestrogen exposure
- TamoxifenPartial oestrogen agonist on endometrium
- PCOS and diabetesAnovulation, hyperinsulinaemia
Why it matters clinically
Postmenopausal bleeding in such a woman needs endometrial assessment.
Where it stops being reliable
A grouping of risks, not a screening rule. Lynch syndrome is a separate genetic risk.
Teaching aid, still awaiting independent review. Confirm facts in a standard source.