Haifuwa

Tsaftace daki mai tsafta yana nufin kashewa ko cire duk wasu ƙwayoyin cuta (ciki har da ƙwayoyin cuta, ƙwayoyin cuta, da sauransu) a cikin wani abu, wanda ke da cikakkiyar ma'ana.Ma'ana, daidai da haifuwa shine rashin haifuwa, kuma babu tsaka-tsakin yanayi na ƙarin haifuwa da ƙarancin haifuwa.Daga wannan ra'ayi, cikakkar haifuwa kusan babu shi domin yana da wahala a samu ko kuma ya kai wani lokaci mara iyaka.

Hanyoyin haifuwa da aka fi amfani da su sun haɗa da: haifuwar bushewar zafin jiki, haifuwar matsa lamba mai ƙarfi, haifuwar iskar gas, haifuwar tacewa, haifuwar radiation da sauransu.