ObjectiveThis paper aims to study the influence of both general and spinal anesthesia on blood sugar changes in patients undergoing cesarean.MethodsThis is a single-blind clinical trial study conducted on 60 patients with classes 1 and 2 anesthesia. The patients were divided by chance into the general anesthesia and spinal anesthesia groups (each contains 30 members). The patients in the spinal group were blocked up to the T4 level and similar methods and medicines were also utilized for those in the general anesthesia group.ResultsNo significant difference was observed in the blood sugar levels of both groups before and after the operation, but the group, which had utilized the general anesthesia method, had reported with lower levels of blood sugar than the spinal anesthesia group after operation with a significant difference (P < 0.05). A difference has been observed in the levels of blood sugar at 2, 12, and 24 h after the operation in both groups, but it was not a statistically significant difference.ConclusionHowever, none of the mentioned methods had any influence on reduction of blood sugar levels during the recovery or the period after it.