Sarah Harding's doctor has urged women to regularly check for signs of breast cancer.
His advice comes following the death of the former Girls Aloud singer yesterday.
Harding was just 39 years old.
The singer had been diagnosed with breast cancer just over a year ago.
Doctor Sacha Howell was Sarah's consultant, and he's urging other women to recognise the signs of breast cancer.
He's said "be aware of what your breasts look like" and that women check them once a month after their period.
Dr Howell says if women have concerns they should report it promptly to their GP.
Girls Aloud star Kimberley Walsh has paid tribute to her bandmate saying that her "fire burned so bright."
Nadine Coyle and Nicola Roberts have also posted online, with both saying they're "absolutely devastated".
