Aims: This study aimed to assess complications of caesarean section among pregnant women attending AL Diwaniyah Maternity and Pediatric Hospital; and find out relationship between complications of caesarean section and socio-demographic data of women. Methods: A descriptive cross-sectional study design is conducted for the period of December 26th 2020 to June 1st 2021. The validity of the questionnaire is determine through a panel of experts and reliability was achieved through a pilot study. By a purposive sample is selected among pregnant women who undergo caesarean section, data was collected through the use of questionnaire and interview techniques; and analyzed through the descriptive and inferential statistic. Results: Findings indicate participants age, the mean age was 29±7.723, the age 20-29 years old (n=217; 43.4%), a not read and write (n=149; 29.8%), more than half of studied participants were housewife (n=339; 67.8%), most of study participants were overweight (n=248; 49.6%). Findings showed that the factors associated with caesarean section were post-partum hemorrhage, prolonged operation wound infection and postpartum infection among studied sample. Regarding fetal complication ,Low Apgar score(n=348;69.6%),respiratory distress syndrome (n=352;70.4%), and perinatal asphyxia(n=468;93.6%), among studied sample. The education and BMI have been significant relationship with their associated factors of caesarean section at p-value <0.05.