4. Oral Thrush

Oral thrush is one of the leading indicators of candida overgrowth and is visible in the mouth, usually appearing as a white coating on the tongue. It is a type of yeast infection that is closely related to Candida. It’s important to treat this ailment early on because if left unchecked, it can quickly spread to other parts of the body. Moreover, saliva makes for a rapid transmitter of oral thrush, so you have to be careful not to come into contact with close family members or sexual partners.