Tongue fungus, commonly called oral thrush, is caused by candida albicans. This fungus causes white bumps on the tongue and inner cheeks and can be very painful.
Oral thrush is most commonly found in infants and children. Symptoms include milky-white lesions on the tongue, inner cheeks and roof of the mouth or gums, redness and soreness that causes difficulty eating and a loss of taste. Infants and breast-feeding mothers are susceptible to the condition and may pass it back and forth to one another.
Oral thrush makes eating and drinking painful and difficult, but it may also cause a number of other problems. Older children, teenagers, and people with compromised immune systems who contract oral thrush should see a doctor.