Migration of Filshie clips--report of two cases and review of the literature.

A 46 year old woman presented with a four month history ofvague suprapubic discomfort. Thisbecame worse prior to her menstrual period and eased following menstruation. Her periods were regular with a 4/28 day cycle. She had no intermenstrual or post coital bleeding and no dyspareunia. She also complained of irritative bladder symptoms consisting of frequency, nocturia and urgency. There was no dysuria or haematuria. There were no gastrointestinal symptoms. In her past medical history she had had an ovarian cystectomy and had undergone a laparoscopic sterilisation in 1994 using Filshie clips. During this procedure there was good vision of the pelvic organs which were normal and the clips were applied without difficulty to each fallopian tube.