Halitosis, commonly known as bad breath, is a condition characterized by an unpleasant odor emanating from the mouth. It can result from various factors, including poor oral hygiene, certain foods, and medical conditions. Bacteria in the mouth break down food particles, producing sulfur compounds that contribute to the foul smell. Maintaining good oral hygiene is essential in preventing halitosis. Regular brushing and flossing, along with routine dental check-ups, can help reduce the buildup of bacteria. Additionally, staying hydrated and avoiding certain foods, such as garlic and onions, can also minimize the risk of developing halitosis.