The invention discloses a
polyurethane foam dressing plaster, which comprises a dressing plaster main body, a pasting expansion wing is arranged on the dressing plaster main body, an
isolation layer is arranged on the pasting expansion wing, and easy-to-tear lines are respectively arranged on the dressing plaster main body and the
isolation layer; the dressing paste body comprises an
absorption layer and first release paper which are arranged up and down, the easy-to-tear line is arranged on the side, close to the hip crack, of the
absorption layer, and the two pasting expansion wings are arranged on the
absorption layer. The easy-to-tear line is additionally arranged on the dressing paste main body, and the extension wings and the
isolation layer are pasted on the dressing paste main body, so that the hip crack part with large tension of the dressing paste main body is improved, the hip crack part of the dressing paste main body can be torn, the pasting freedom degree of the dressing paste main body is expanded, the hip crack part of the dressing paste main body can be smoother, and the
extrusion pressure is reduced; the covering area can be increased after the dressing paste body is torn open through the pasting expansion wings, the torn part of the dressing paste body can be better attached to the
skin of a patient, and the dressing paste is particularly suitable for a large patient (an obese patient).