A balloon tamponade device 8 is described for controlling post-partum haemorrhage. In one embodiment the tamponade 8 comprises surface features 13 configured to increase friction between the device 8 and the uterus into which it is inserted. The features 13 preferably take the form of projections, domes or nubs, or may be formed by providing the balloon with a knurled surface. In another embodiment the tamponade 8 comprises both first 11 and second 10 regions configured such that, when the uterus in which the device 8 is inserted is not contracted, the first region 11 limits expansion in the first region 11, thereby resulting in increased expansion of the second region 10. When the uterus in which the device 8 is inserted however contracts, a compressive force is applied by the uterus to the second region 10 and the first region 11 distends further than the limit. In another embodiment the tamponade 8 comprises a reinforced insertion end 12 against which an insertion tube 15 is located, and wherein the reinforced end 12 projects beyond the tube in an insertion direction.
