Bullous impetigo is a contagious superficial infection of the skin caused by certain strains of Staphylococcus aureus which release toxins into the local environment which are capable of cleaving desmoglein I, a protein involved in intercellular adhesion of epidermal keratinocytes. In contrast to the very superficial, rapidly shed and rarely observed blisters of non-bullous impetigo, the bullae of bullous impetigo are tense and well demarcated, sometimes reaching several centimetres in diameter before rupture.
Also indexed as
Blistering distal dactylitisBullous impetigoBullous impetigo of the napkin area