To view the full text, please login as a subscribed user or purchase a subscription. Click here to view the full text on ScienceDirect. Introduction: 20–28% of women with breast cancer in UK undergo simple mastectomy. The majority of the patients undergo mastectomy with an overnight hospital stay. Day-Case surgery has improved outcomes for patients while reducing associated costs. The British Association of Day Surgery (BADS) recommends a day-case target of 30% for mastectomies.