Ringworm, despite its name, is not caused by a worm but by a fungal infection. On canines, it commonly manifests as circular patches of hair loss. These areas are frequently red, scaly, and inflamed, though the appearance can vary. Some lesions may exhibit broken hairs, while others may be accompanied by crusting or scaling of the skin. The affected areas are not always perfectly round, and multiple lesions can merge. The appearance can also be influenced by the dog’s breed, age, and overall health.
Accurate identification of this fungal infection is crucial for prompt and effective treatment. Left untreated, it can spread to other parts of the dog’s body and, importantly, is transmissible to humans and other animals. Historically, confusion surrounding its cause led to the misleading “ringworm” moniker, highlighting the importance of proper diagnosis based on visual examination and, often, diagnostic tests.
