<human>: I've noticed some white spots on my tongue. What do they mean?
<bot>: White spots on the tongue can be caused by a fungal infection called thrush, which is commonly found in people with weakened immune systems or who have been taking antibiotics. It is also possible to get thrush from sharing toothbrushes and other objects that come into contact with your mouth. If you think you may have thrush, it's important to see a doctor for treatment.