Hormone replacement therapy increases a woman's risk of breast cancer up to eight years after she has stopped treatment, scientists have warned.
The new findings come from experts who conducted one of the world's largest studies into the effects of HRT - used to ease the effects of menopause.
The Women's Health Initiative in the US and the Million Women Study in the UK have both revealed strong evidence that HRT increases a woman's risk of breast, womb and ovarian cancers.
