title: Supernumerary nipples: prevalence, size, sex and side predilection -- a prospective clinical study.
abstract: The purpose of the following clinical study was to determine the prevalence, size, sex and side predilection of supernumerary nipples. Out of 502 patients, 28 (5.6%) exhibited a supernumerary nipple of small (only areola with diameter less than 30% of normal areola) or middle size (areola with nipple, diameter 30%-50% of normal areola). The male/female ratio was 20/8 and left/right side ratio 15/7 in males and 5/4 in females.
  
  
  CONCLUSIONS
  A supernumerary areola or a supernumerary areola with nipple is a frequent finding. There is a higher prevalence for the left side and male gender.
authors.affiliation: University Childrens Hospital, Munich, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Schmidt
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009558:Nipples / Q000002:abnormalities*; D015995:Prevalence; D011446:Prospective Studies