Mouth rot is a bacterial infection that can affect both the mouth and gums of a bearded dragon.
Symptoms include bleeding gums, loss of appetite, blackening of the teeth, swollen mouth, and a cheesy, yellowish buildup between the teeth.
This disease almost never occurs in dragons that are well taken care of, as it is generally brought on by dirty living conditions and low temperatures.
It is extremely painful for the reptile and can prove fatal if not treated by a veterinarian as quickly as possible.
To prevent mouth rot, maintain a clean terrarium and be sure your pet is getting an appropriate level of heat.
Also do not over feed Bearded dragon sweeties like waxies and sugary foods like fruit, mouth rot is like gum disease in humans.