A suprapubic catheter (6) comprises a drainage tube (7) having a drainage end for location outside the patient's body. The drainage end has an enlarged head portion on which a urine collection bag (12) may be removably mounted. The catheter (6) has a disk (9) which lies against the patient's skin. A breathable dressing (11) is used to secure the disk in position and thus retain the catheter on the patient's body.
