Kubira ibyuya bikabije bishobora kuba indwara yizanye, iturutse ku bundi burwayi waba ufite, ikibazo mu mikorere y’umubiri cg se ikoreshwa ry’imiti.
Kubira ibyuya ahantu hose icyarimwe; ibi akenshi biterwa n’imikorere mibi y’ingingo zishinzwe kugena ubushyuhe mu mubiri, cg se bishobora guterwa n’indi ndwara ushobora kuba ufite.