Wich can be the causes of an complication caused by an cesarian surgery that provoced taking out the uterus?

Bleeding. Usually doctors do not like to take out the uterus during a csection because it is a difficult surgery. It is generally done because of very heavy uncontrolled bleeding that is a threat to the new mother's life. General several other options are tried and removal if the uterus is seen as a last resort.
Hysterectomy. Several conditions that may require a hysterectomy during a cesarean section usually have to do with bleeding. Placenta accreta, wherein the placenta is markedly attached to the uterus is one. Atony or relaxation of the uterus is another. Rarely, a malignant process like choriocarcinoma may require a hysterectomy.