The lupus erythematosus complex is an autoimmune dermatopathy characterized by a disorder in the immune system of the affected animals. It presents in two clinical forms: discoid lupus erythematosus and systemic lupus erythematosus, the former being its milder form. There is still no defined etiopathogeny, but a genetic predisposition and immunological disorders in affected animals are suggested. Lupus Erythematosus is a disease that has no cure, but its signs and symptoms may be delayed with the correct treatment.