The most common reasons are failure to progress, which can be failure to get to full cervical dilatation, an inability to push the baby out and fetal distress prior to the end of labor (when the mom is not fully dilated).
Izizathu ezixhaphakileyo zezokungakwazi ukuqhubekeka okunokubangelwa kukungavuleki ngokupheleleyo komlomo wesizalo, ukungakwazi ukulutyhala luphume usana kunye nokudinwa kosana esalunywa umdlezana (ungekavuleki ngokupheleleyo umlomo wesizalo somdlezana).