Orphanet: Familial adenomatous polyposis

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Familial adenomatous polyposis

Disease definition

Familial adenomatous polyposis (FAP) is characterized by the development of hundreds to thousands of adenomas in the rectum and colon during the second decade of life.


Classification level: Disorder
  • Synonym(s):
    • Colorectal adenomatous polyposis
    • FAP
    • Familial polyposis coli
  • Prevalence: 1-9 / 100 000
  • Inheritance: Autosomal dominant or Autosomal recessive 
  • Age of onset: Adult
  • ICD-10: D12.6
  • OMIM: 175100
  • UMLS: C0032580
  • MeSH: D011125
  • GARD: 6408
  • MedDRA: 10056981

Detailed information

Article for general public


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