Fungal infection in the mouth is usually caused by fungi from the genus Candida. The most frequent causative agent is Candida albicans. Candida albicans is part of the normal flora in the mouth cavity and it has been isolated in approximately 50% of the healthy population and in around 90% of denture owners. Certain circumstances can cause weakening of the immune system and more intense propagation of candida which leads to an infection known as candidiasis or soor in children. Considering that the fungus travels through the blood circulation across various parts of the body, different symptoms may develop. In the oral cavity it attacks the tongue, gums, and the inner side of the cheek.