Ma'anar ƙamus na catheterization shine tsarin shigar da ƙananan bututu da ake kira catheter a cikin rami na jiki, bututu, ko jirgin ruwa, yawanci don ba da damar magudanar ruwa, allurar ruwa, ko samun damar yin hanyoyin likita. Ana yawan amfani da catheterization a cikin wuraren kiwon lafiya don tantancewa ko magance yanayi daban-daban kamar cututtukan urinary fili, yanayin zuciya, da cututtukan jijiyoyin jini.