Yes, ringworm (also known as dermatophytosis) is not caused by a worm at all but a fungus that lives on the skin. It is more common in cats than dogs, but dogs do get it as well. A ringworm infection typically results in itchy or red skin, hair loss, and crusts, scaling, or scabs on the skin.
Ringworm is considered highly contagious and is spread from person to person, from animal to person, or indirectly from contaminated objects or soil. The associated spores from the mature fungus can live for years in the right conditions. Ringworm typically infects three sites: scalp, body and nails.
A great precaution is to always wash your hands after handling your dog. Not only does it curb the spread of ringworm, it also helps fight other contagious diseases.
Learn more about ringworm so you can prevent this contagious fungus.