Iki gicuruzwa gitanga uburambe bwambaye ubusa kandi bigabanya neza umutwaro ku nda.Gupfunyika inda mu mpande zose, bigabanya umuvuduko ukomoka kumyitozo ngororamubiri.Gukoresha inshuro ebyiri abrasion yambaye ubusa yimyenda yangiza ibidukikije, yorohewe kandi ihumeka.Imyenda yoroheje kandi ifite ubuzima bwiza, nta pillingi, nta kuzimangana, nta guhindura, nta kugabanuka, nta mashanyarazi ahamye.Umwenda woroshye cyane, urashobora gukemura neza inda mugihe utwite uba munini wambaye ibibazo, kuboha-bitatu, guhindura igifu.Komeza umurongo wamaguru kugirango ushireho, wambaye ibikorwa mubuntu.Umukandara wo guhindura umwuga, hindura ubunini nkuko bikenewe.