Kubyitegererezo, umwanya wambere ni iminsi 7. Kubyara ubwisanzure, umwanya wambere ni iminsi 20-30 nyuma yo kubona ubwishyu. Ibihe byateganijwe bifatwa neza mugihe (1) twakiriye kubitsa, kandi (2) dufite icyemezo cyawe cya nyuma kubicuruzwa byawe. Niba ibihe byacu bikakora hamwe nigihe ntarengwa cyawe, nyamuneka jya hejuru y'ibisabwa ukoresheje kugurisha. Mubibazo byose tuzagerageza kwakira ibyo ukeneye. Mubihe byinshi turashobora kubikora.