Neonatal impetigo is a purulent disease of the skin. The causative agent of the disease is a more virulent bacterium called Staphylococcus aureus, which causes neonatal impetigo when it infects the skin, and causes neonatal sepsis if it invades the child’s blood, meningitis if it invades the child’s brain fluid, and septic arthritis if it invades the joints, so the bacterium is more virulent. Neonatal impetigo is a more serious disease, once found, should promptly take the child to the hospital.