I-Phimosis yisimo lapho ijwabu lobudoda lingakwazi ukwelula khona ukuvumela ukuthi libuyiselwe emuva lidlule i- glans . Ukuvuvukala okufana nebhaluni ngaphansi kwejwabu kungenzeka ngokuchama. Ebusheni nasebantwini abadala, kungahle kube nobuhlungu ngesikhathi sokumiswa, kepha kungenjalo akubuhlungu. Labo abathintekile basengozini enkulu yokuvuvukala kwe-glans, eyaziwa njenge- balanitis, nezinye izinkinga. Ezinganeni ezincane, kuyinto ejwayelekile ukungakwazi ukubuyisa ijwabu nhlobo.Ngaphezu kwamacala angama-90% axazululwa eneminyaka eyisikhombisa, yize ukuhoxiswa okugcwele kusavinjelwe ukunamathiselwa kokuqina okungaphezulu kwengxenye engaphezu kwalesi sikhathi. Ngesinye isikhathi, i-phimosis ingabangelwa yisimo esingaphansi kwesibazi ngenxa ye- balanitis noma i- balanitis xerotica obliterans . Lokhu kungatholakala ngokutholakala kokubola kokuvulwa kwejwabu. Imvamisa, isimo sixazululwa ngaphandle kokwelashwa sineminyaka engu-18. Akufanele kuzanywe imizamo yokubuyisa ijwabu ngesikhathi seminyaka yokuqala yokuphila kowesilisa. Kulabo isimo esingathuthuki kubo, isikhathi singanikezwa noma ukhilimu we-steroid ungasetshenziswa ukuzama ukukhulula isikhumba esiqinile. Uma le ndlela, kuhlangene umzimba esisuka, akuyona ngempumelelo, bese ezinye izindlela zokwelapha ezifana ukusoka kungenzeka Kunconywa.Inkinga engaba khona ye-phimosis yi- paraphimosis, lapho ijwabu eliqinile livaleleka ngemuva kwe-glans. Leli gama livela esiGrekini φίμωσις phimōsis 'muzzling'. Ekuzalweni kwakhe, ungqimba engaphakathi ijwabu ivaliwe kuya glans umthondo.