A wound dressing (1) comprises an absorbent body of foam material with first and second major surfaces. The first major surface is, in use, the wound-facing surface of the absorbent body (1). A thermochromic indicator (13) is incorporated into, or is in intimate contact with, the second major surface of the absorbent body (1). The thermochromic indicator (13) is sensitive to a change in temperature of the skin below the dressing (1) and so is indicative of an infection.
