State lotteries are government-run games of chance where participants buy tickets for a chance to win cash prizes. The proceeds from ticket sales are often used to fund public services, such as education, infrastructure, and health programs. Each state in the U.S. has its own lottery rules and regulations, and the games can vary widely in format and prize structure. Players typically select numbers or purchase pre-selected tickets, and drawings are held regularly to determine winners. While state lotteries can generate significant revenue, they also raise concerns about gambling addiction and the fairness of the odds, as the chances of winning large jackpots are usually quite low.