Wendy mentions the change in breast density thru the years - also relative to having children and aging.
It can be hormonal as well as genetic, I think - hence women on HRT have a higher chance of BC as their hormones have been manipulated.
I was on hormone cream for some months in my 50s & had a mammogram at that time - and received a callback to the local bus, then to the closest town ..... then to John Hunter Hospital in Newcastle! It was believed to relate to the testosterone component of the cream! I stopped the cream as soon as I got the callback to John Hunter & by the time I was checked again there - it had gone back to relatively normal again! (No mention of dense breast tissue there, either, even tho a specialist had told me in my 20s that my breasts were 'lumpy'!)
