Awareness ribbons are symbols meant to show support or raise consciousness for a cause. Different colors and patterns are associated with different issues. Awareness ribbons can be worn on clothing like pins, they can be appear on bumper stickers in vehicles, or they can be on arm wristbands, among many other ways. The ribbon is a symbol of awareness and support.
Of the uses of ribbons to draw awareness to health issues, perhaps the best-known is the pink ribbon for support of those with breast cancer. Other health and social concerns which have adopted colored ribbons include Alzheimer's disease and pancreatic cancer (purple), HIV/AIDS (red), mental health and mental illness (green), suicide prevention and for brain disorder or disability (silver).