This disease, also known as Yellow Skin Disease is caused by a fungal infection. The spores from this fungus can be transmitted either through direct contact between Bearded Dragons or indirectly through basking logs or other shared surfaces.

Once established in the skin the fungus causes raised plaques and dry skin and will progress to weeping sores and ulcers and later can spread internally into the Dragon's internal organs and is often then fatal. Seek immediate advice from your Vet who can prescribe anti-fungals or, if necessary amputate the affected area if possible.

Making sure you vivarium is at the correct temperature can help to reduce the risk, as a vivarium that is too low in temperature will help the fungus to thrive.