The causes and predisposing factors for breech presentation include-
Pre term labor - When labor starts when the baby is still small enough to move rather freely in the uterus. This usually occurs at 7-8 months rather than the usual 9 months.
- an unusual shape of the mother's uterus, where there is a partition in the uterus (septate uterus) or the uterus has two incomplete divisions (bicornuate), may predispose to breech presentations. Space occupying mass
- fibroids in the lower part of the uterus may predispose to breech presentations. Polyhydramnios
- too much of amniotic fluid may allow the fetus too much movement. Fetal abnormalities
- like malformations of brain, neck masses and aneuploidy Multiple gestations (more than one fetus)
- Breech presentation may result due to the limited space in the uterus. Multiparity
- in particular grand multips. Increased maternal parity leads to increased laxity of the uterus and increases the risk of breech presentation. Short umbilical cord Placenta previa
- Placental implantation over the cervical opening instead of being on the side may lead to breech presentation. Placental, cornual or fundal implantation
- also increases the risk of breech presentation.