Placenta

14.05.2026 Prof. Dr. Cihan Kaya

What is the Placenta? – Comprehensive Guide

What is the Placenta?

The placenta is a temporary organ that provides a connection between the mother and the baby during pregnancy. It supplies the oxygen and nutrients necessary for the baby's development.

Functions of the Placenta

The placenta undertakes the tasks of transporting oxygen and nutrients, removing waste products, producing hormones, and providing immune support.

How Does It Form?

The placenta begins to develop when the fertilized egg implants in the uterine wall and grows, gaining function throughout pregnancy.

Placenta and Hormones

The placenta produces hormones essential for pregnancy, such as hCG, progesterone, and estrogen.

Types and Location of the Placenta

The placenta usually implants in the upper part of the uterus. However, in some cases, it may implant lower (placenta previa).

Placental Problems

Conditions such as placenta previa, placenta accreta, and premature separation (placental abruption) can pose risks during pregnancy.

Placenta Previa

This is when the placenta implants in a way that covers the cervix. It can prevent vaginal birth and may require a C-section.

Placenta Accreta

This is when the placenta abnormally attaches to the uterine wall. It can pose a risk of severe bleeding during childbirth.

Placental Abruption

This is the separation of the placenta from the uterine wall before birth and requires emergency intervention.

How is it Diagnosed?

Ultrasound is the most important diagnostic method. MRI may be used in necessary cases.

After Birth

After birth, the placenta separates from the uterus and is expelled. This process is called the third stage of labor.

Conclusion

The placenta is vital for a healthy pregnancy. Potential problems can be detected early with regular monitoring.

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