Understanding the white film on your tongue is essential for good oral health. This film, usually caused by candida overgrowth, can lead to infections in the mouth and throat like oral thrush. People with compromised immune systems, poor dental hygiene, or those who wear dentures are more susceptible to candida infections. Symptoms may vary, but treatment is available to help clear the white film and prevent future infections. Learn more about candida causes, symptoms, and treatment options for a healthier mouth and skin.