Symptoms of systemic lupus erythematosus are characterized by pronounced polymorphism, but almost monoclonal variants of the debut of the disease are observed in almost 20% of children. The course of systemic lupus erythematosus usually wavy, with alternating periods of exacerbations and remissions. In general, systemic lupus erythematosus in children is characterized by a more acute onset and course of the disease, earlier and rapid generalization and less favorable outcome than in adults.