What causes invitigo?

Impetigo is primarily caused by bacterial infection, most commonly by Staphylococcus aureus or Streptococcus pyogenes. It typically occurs when bacteria enter the skin through cuts, abrasions, or insect bites, leading to the formation of red sores or blisters. The condition is highly contagious and can spread through direct contact or by sharing personal items. Factors like poor hygiene, warm climates, and close living conditions can increase the risk of developing impetigo.