Familial adenomatous polyposis (FAP), a rare disorder that causes hundreds or even thousands of polyps to develop in the lining of your colon ...COVID-19:Advice,updatesandvaccineoptionsWeareopenforsafein-personcare.Learnmore:MayoClinicfactsaboutcoronavirusdisease2019(COVID-19)OurCOVID-19patientandvisitorguidelines,plustrustedhealthinformationLateston COVID-19vaccination bysite:ArizonapatientvaccinationupdatesArizona,FloridapatientvaccinationupdatesFlorida,RochesterpatientvaccinationupdatesRochesterandMayoClinicHealthSystempatientvaccinationupdatesMCHSSkiptositenavigationSkiptoContentThiscontentdoesnothaveanEnglishversion.ThiscontentdoesnothaveanArabicversion.SectionsforColonpolypsSymptoms&causesDiagnosis&treatmentDoctors&departmentsCareatMayoClinicPrintOverviewAcolonpolypisasmallclumpofcellsthatformsontheliningofthecolon.Mostcolonpolypsareharmless.Butovertime,somecolonpolypscandevelopintocoloncancer,whichisoftenfatalwhenfoundinitslaterstages.Therearetwomaincategoriesofpolyps,non-neoplasticandneoplastic.Non-neoplasticpolypsincludehyperplasticpolyps,inflammatorypolypsandhamartomatouspolyps.Thesetypesofpolypstypicallydonotbecomecancerous.Neoplasticpolypsincludeadenomasandserratedtypes.Ingeneral,thelargerapolyp,thegreatertheriskofcancer,especiallywithneoplasticpolyps.Anyonecandevelopcolonpolyps.You'reathigherriskifyou're50orolder,areoverweightorasmoker,orhaveapersonalorfamilyhistoryofcolonpolypsorcoloncancer.Colonpolypsoftendon'tcausesymptoms.It'simportanttohaveregularscreeningtests,suchasacolonoscopy,becausecolonpolypsfoundintheearlystagescanusuallyberemovedsafelyandcompletely.Thebestpreventionforcoloncancerisregularscreeningforpolyps.Products&ServicesBook:MayoCliniconDigestiveHealthSymptomsColonpolypsoftencausenosymptoms.Youmightnotknowyouhaveapolypuntilyourdoctorfindsitduringanexaminationofyourbowel.Butsomepeoplewithcolonpolypsexperience:Rectalbleeding.Thiscanbeasignofcolonpolypsorcancerorotherconditions,suchashemorrhoidsorminortearsinyouranus.Changeinstoolcolor.Bloo