A group of breast cancer survivors have started a social movement of their own in response to Marks & Spencer’s #ShowYourStrap campaign.

#ShowYourScar was created by women who became friends after joining online support group The Younger Breast Cancer Network.

It urges those who have undergone cancer surgery to show their “real” scars, rather than their bra straps, which they say “sexualise” the disease.

Meanwhile, the #ShowYourStrap campaign was started by Marks & Spencer to raise money for charity Breast Cancer, and has been supported by celebrities such as Rosie Huntington-Whiteley and Game of Thrones’ Maisie Williams.

It encourages people to take selfies showing their bra straps and to donate £3 by text for Cancer Research.

Kim Feast, 31, told the Mail Online she came up with the idea in the waiting room as she was about to have her second mastectomy.

Breast cancer survivors bare their scars in response to “sexualised” #ShowYourStrap charity campaign