The pink ribbon is an international symbol of breast cancer awareness. Pink ribbons, and the color pink in general, identify the wearer or promoter with the breast cancer brand and express moral support for women with breast cancer. Pink ribbons are most commonly seen during National Breast Cancer Awareness Month.he pink ribbon was adopted as the official symbol of National Breast Cancer Awareness Month the next year, in 1992. The pink ribbon was derived from the popular red ribbon for AIDS awareness.