The present invention relates to the field of wound dressing, in particular to a wound dressing for surgical wounds in mucosal cavities such as oral cavity (e.g., gum, gingiva). In particular, the present invention relates to a wound dressing comprising a) A polymer film comprising: 1. One or more outer layer(s) (1)； 2. One or more intermediate layer(s) (2)； 3. One or more, preferably permeable, inner layer(s) (5)； and b) Optionally, a cushion area (3) between the at least one inner layer and the at least one intermediate layer, wherein the one or more outer layer(s) completely cover(s) the one or more intermediate layers and the one or more inner layers, and wherein the central area of the one or more outer layer(s) overlaps with the one or more intermediate layer(s) and the one or more inner layer(s), and the peripheral area of the one or more outer layer(s) does not overlap with the one or more intermediate layer(s) and with the one or more inner layer(s)； wherein a hole is provided in the central area of the one or more outer layer(s)； wherein a space is defined between the one or more outer layer(s) and the one or more intermediate layer(s) and/or, if there is more than one intermediate layer, a space is defined between at least one intermediate layer closer to the one or more outer layer(s) and at least one intermediate layer closer to the one or more inner layer(s), such that an adhesive fluid suitable for fastening the dressing can flow from the hole to the peripheral area (7).L'invention porte sur un pansement pour plaies de cavités muqueuses telles que la cavité buccale (par exemple, gencive, gencive). Le pansement est fait de a) un film polymère comprenant : 1. Une ou plusieurs couches extérieures (1)； 2. Une ou plusieurs couches intermédiaires (2)； 3. Une ou plusieurs couches internes, de préférence perméables, (5)； et éventuellement, une zone cousinée (3) entre les couches internes et intermédiaires. Les couches externes recouvrant complètement les couc
