White spots on teeth can be caused by a variety of factors. One common cause is a lack of proper oral hygiene, which can allow bacteria to build up on the teeth and cause the formation of white spots. White spots can also be caused by certain medications, such as antibiotics, which can cause changes in the tooth’s structure and make it more susceptible to staining. In some cases, white spots can be a sign of a more serious dental condition, such as enamel hypoplasia, which is a condition in which the tooth enamel is underdeveloped. It is important to see a dentist if you notice white spots on your teeth, as they can provide a proper diagnosis and treatment plan.