Ukutheleleka kwe-Helicobacter kubangela ukusabela okuvuthayo kanye nokuzivikela komzimba, ngokuwohloka kwamangqamuzana, i-necrosis, nokungena kwamangqamuzana okuvuvukala okubonwa ku-mucosa yesisu esinegciwane, kanye nama-antibodies athile angatholakala ku-serum.I-Helicobacter ihlotshaniswa nezifo ezihlukahlukene ezifana ne-gastritis, isilonda se-peptic, umdlavuza wesisu, i-gastric mucosa-associated lymphoid tissue lymphoma (MALT lymphoma), i-NSAID-associated gastropathy functional dyspepsia kanye ne-GERD.