An optical fibre cable for distributed fibre sensing of fluid pressure is disclosed. There are also disclosed a method and an apparatus for distributed fibre sensing of fluid pressure using the optical fibre cable. The optical fibre cable is adapted for distributed pressure sensing, and comprises: one or more optical fibres (120); and a buffer (130) surrounding the one or more optical fibres and adapted to deform asymmetrically under isotropic pressure (P) such that the fibre experiences asymmetric strain changing the birefringence of the one or more optical fibres. The optical fibres incorporated in the cable may be conventional single mode optical fibres. The optical fibre cable may be used to determine a pressure distribution along the length of the cable. The cable, apparatus or method may be used to detect pressures over long distances such as in pipes, pipelines, or wells.