A suprapubic urethral catheter has a hollow tube with a suprapubic section (1), a bladder section (2) and a urethral section (3). An abdominal stop (5) is slidably mounted on the suprapubic section (1), and the bladder section (2) has drainage eyeholes (4) which enable urine from the bladder to drain into the catheter. A non-return cuff (6) is mounted on the bladder section between the drainage eyeholes (4) and the abdominal stop, the non-return cuff (6) having a projecting portion projecting outwards from the tube, being deformable towards the tube and resisting deformation away from the tube. The cuff (6) allows the catheter to be inserted into a suprapubic track in the abdominal wall of a user, but once the cuff has entered the bladder, the projecting portion prevents retrograde movement of the catheter out of the suprapubic track.
