One thousand vasectomies.

In a prospective study of 1,000 people treated by vasectomy at the Margaret Pyke Centre under local anaesthesia as outpatients minor sepsis occurred in 12 cases, an abscess in one, and haematoma needing drainage in seven. Spontaneous recanalization of the vasa occurred in six patients and an unsuspected third vas was found in one.Except in patients with recanalization or a third vas the semen was always free from motile spermatozoa within three months, but non-motile spermatozoa have so far persisted for up to 17 months in a few cases.