Uterine contractions and active abdominal contractions push the foal along. The foal is typically delivered 10 to 20 minutes following rupture of the chorioallantois. Stage 3 is the passage of the fetal membranes. The placenta and other membranes should be completed within three hours of the foal being born.

How do horses have foals?

Even in a normal delivery, the mare may stand up, lie down and roll several times in an effort to properly position the foal for delivery. During this phase, contractions move the foal through the cervix and into position in the birth canal. The fetal membranes (allantois) may become visible at the mare's vulva.

What gives birth to a foal?

When the mare gives birth, she is "foaling", and the impending birth is usually stated as "to foal".