A year of HRT ups breast cancer risk
Menopausal women prescribed hormone therapy for more than a year have a greater risk of breast cancer compared with those who have never used the treatment, a landmark study has found.
The elevated risk persists even after ceasing HRT and for up to 15 years post-therapy, the UK researchers say.
The finding is at odds with recent health messages, with Jean Hailes for Women's Health advising that taking menopausal HRT for 2-5 years "causes little if any increase in breast cancer risk".
In a meta-analysis of 24 prospective epidemiological