Creamy white lesions
Normally, your immune system attempts to resist potentially hazardous invading species such as viruses, bacteria, and fungus while maintaining a balance of "good" and "bad" microorganisms in your body. However, sometimes the defensive systems fail, allowing candida to multiply and infect the mouth, resulting in oral thrush. On the tongue, creamy white spots emerge. Then it turns into yellow, green, and sometimes black areas, with necrosis in extreme instances.
Oral thrush is a condition that causes plaques to form on your tongue, inner cheeks, and occasionally on the roof of your mouth, gums, and tonsils, called creamy white lesions. They can have an unpleasant taste. Oral thrush can also be painful, especially when eating or drinking. This sign is not always present that you have oral thrush but in some special cases, this can be a warning for serious diseases that are hidden in the body that you have not discovered.