'This leads people to believe that breast cancer does not affect women from other communities,' said BCC director of comms and marketing Sangeeta Haindl.
The charity is also concerned that more than 80 per cent of the case studies used during October showed women aged between 30 and 49, even though women above 50 had the highest risk of contracting the disease.
'We send out case studies of women over 50, and the media always ask, "have you got anybody younger?",' explained Haindl.
The charity will run campaigns tagged 'breast cancer doesn't discriminate' in the run-up to this year's awareness month. It is also redoubling its efforts with lesbian and BME press.
Haindl added that the BCC report was released on the same day that National Magazine Company editorial director Lindsay Nicholson renewed her call for more diversity among UK magazines.