title: Fatherhood without apparent spermatozoa after vasectomy.
abstract: Fatherhood after vasectomy is rare. We describe 6 cases of DNA-proven fatherhood after vasectomy in association with persistently negative semen examination. All vasectomy patients and their partners should be counselled about the small possibility of late failure, and warning of failure should be recorded.
authors.affiliation: Department of Urology, Churchill Hospital, Oxford, UK.
authors.forename: J C
authors.initials: JC
authors.lastname: Smith
authors.forename: D
authors.initials: D
authors.lastname: Cranston
authors.forename: T
authors.initials: T
authors.lastname: O'Brien
authors.forename: J
authors.initials: J
authors.lastname: Guillebaud
authors.forename: J
authors.initials: J
authors.lastname: Hindmarsh
authors.forename: A G
authors.initials: AG
authors.lastname: Turner
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D013076:Sperm Count; D014659:Vasectomy