Aim: To evaluate the incidence of spinal anesthesia failure necessitating conversion to general anesthesia in women presenting for caesarean section. Methods: This research included 120 women who were scheduled for a caesarean section under regional anaesthetic, as well as women who were weighed and had their heights measured. Women scheduled for general anaesthesia, women who refused to participate, and women whose height and weight could not be obtained were all excluded from the research.