Geographic tongue during a year of oral contraceptive cycles

The geographic tongue of a 23-year-old female student was examined daily for one year. The size, number and location of the lesions were recorded using transparent films. The phase of the oral contraceptive cycle appeared to have a marked effect on the initiation and duration of the circinate lesions, the tongue changes being severest on the 17th day of the cycle. There was a positive correlation between the subjective complaint and the clinical picture of the tongue.