Consultation is necessary in cases when the child complains of pain in the joints, muscles; musculoskeletal disorders - the child has limited daily activities, prolonged fever for no apparent reason, rash of unknown origin, fatigue, weight loss, etc.

• Inflammation of various joints or arthritis;
• Diseases of the connective tissue system (systemic lupus erythematosus, dermatomyositis, scleroderma, etc.) involving several organ systems (eg cardiovascular system, kidneys, liver, skin, etc.);
• Inflammatory diseases of blood vessels;
• Autoimmune diseases;
• Unexplained musculoskeletal pain, fatigue, loss of appetite, weakness and / or loss of muscle function and ability;
• Unexplained symptoms such as anemia, weight loss, swelling of the joints.