What causes a baby to be breech?

What causes a baby to be breech?

It’s not always known why a baby is breech. Some factors that may contribute to this position are:

• You are expecting multiples (twins or more). This makes it harder for each baby to get into the right position.
• There is too much or too little amniotic fluid.
• The uterus is not normal in shape or has abnormal growths such as fibroids. Most of the time, the uterus is shaped like an upside-down pear. If it's shaped differently, there might not be enough room for a full-grown baby to move into position.
• The placenta covers all or part of the cervix (a condition called placenta previa).
• The baby is preterm. This means they are less than 37 weeks gestation and may not have turned to a head-first position.
• Your baby has a birth defect that causes them to not turn head-down.