Cord Presentation and Cord Prolapse

What is the difference ?

1. With a cord presentation, the umbilical cord lies in front of the presenting part with the membranes still intact.
2. With a cord prolapse, the cord lies in front of the presenting part and the membranes have ruptured. The loose cord may lie between the presenting part of the fetus and the cervix, in the vagina or outside the vagina.

Why is prolapse of the umbilical cord a serious complication ? 

Because the flow of blood between the fetus and placenta is severely reduced and may stop completely, causing fetal distress and possibly fetal death.

Information found on this website:
Ebwhealthcare.com