Kalmar "cheiloschisis" tana nufin yanayin kiwon lafiya da aka fi sani da cleft lebe. Ciwon haihuwa ne inda aka samu rabe-rabe ko rata a lebban sama wanda zai iya kaiwa zuwa hanci. Kalmar "cheilo" tana nufin lebe, kuma "schisis" yana nufin tsaga ko rata. Cheiloschisis yana faruwa ne ta hanyar rashin cika ƙwayar leɓe yayin haɓaka tayin kuma ana iya gyara shi ta hanyar tiyata.
