The Yellow Awareness Shinobi: People attach or wear yellow ribbon to support our troops who have been striving hard to keep our nation protected. It is also used in other instances including suicide prevention, missing children, bladder, and more. You can find other symbols associated with the ribbon below. Yellow: Adenosarcoma, Ewing’s Sarcoma, Gulf War, Bladder Cancer, Carbon Monoxide Poisoning, POW/MIA, Adoptive Parents, Liver Cancer, Canadian Cancer Society, Liver Disease, Complementary/Alternative Medicine, Endometriosis, Equality, Amber Alert, Hydrocephalus, Missing Children, Suicide Awareness, Osteosarcoma, Obesity, Remembrance, Sarcoma, Spina Bifida, Myxoid Liposarcoma, Troop or Military Support