National Tooth Fairy Day is observed worldwide on August 22 and is an unofficial holiday celebrating the beloved childhood character known as the tooth fairy. The holiday has two possible dates, with some people also recognizing it on February 28. It commemorates the cultural rite of passage associated with the loss of a child's deciduous teeth, often referred to as baby teeth or milk teeth. Various customs exist globally, such as placing baby teeth under pillows for exchange with small gifts or money, a practice linked to traditions in Norse countries and European cultures. The tooth fairy, particularly popular in English-speaking countries, has a varied portrayal, with no consensus on appearance or gender. This character is believed to provide comfort to children experiencing the distress of losing their teeth, and parents often use the myth to help their children cope with fear or pain. Celebrations may include telling children about the tooth fairy, reading related books, or watching movies about the character.