Iibhulukhwe ezibalekayo zisebenzisa umbala omnyama nomhlophe wetshekhi ehambelanayo, ukutsala amehlo, ukuqonda kombala owomeleleyo, umtsalane wamehlo owomeleleyo, inkqubo eqinileyo engenamthungo, iprepuce phezu kwethole eliphuma iigophe eziqaqambileyo.