Wear BLUE Day is observed every June 18 in the United States, aiming to raise awareness about men's health issues. Participants are encouraged to wear blue attire, which symbolizes various health conditions that predominantly affect men, such as prostate cancer, heart disease, and diabetes. The day promotes the importance of regular health checkups and preventative care, urging men to prioritize their well-being. It is part of Men's Health Month, initiated by the Men's Health Network, a non-profit organization focused on educating the public about men's health challenges. The event often sees social media engagement through the hashtag #ShowUsYourBlue, as individuals and organizations come together to advocate for healthier lives.