Perhaps the most important stage of IVF treatment is the process of combining the sperm and egg.

After the egg cells are collected from the mother-to-be, this stage begins by taking sperm from the father-to-be on the same day. The structurally appropriate, dynamic and healthiest sperm samples are selected, and the procedure of combining sperm and egg is performed under a microscope in a special system called a micromanipulator.

Which Techniques Are Used?

Two different techniques are used in the union of sperm and egg. The first of these is the classical method. In the classical method, a certain number of sperms are left around each egg and waited in its own flow without interfering. If the reason for not being able to have children naturally is due to the expectant mother, this method is generally preferred.

It is taken into the liquid called medium. This fluid contains nutrients for egg cell purpose. Sperm are deposited around the egg cell. After the sperm and egg are kept in this liquid in the incubator overnight, it is checked whether fertilization has occurred

If the sperm count and movement are low and there are structural problems, the fertilization technique with microinjection is applied. During the procedure, the egg cell is taken into the medium in the form of a droplet under a microscope with a special magnification. A single sperm cell, taken into a sterile needle in the form of a very thin and hollow glass tube, is inserted into the egg by puncturing the outer membrane of the egg under the microscope. The egg cell in which the sperm has been placed is kept in the incubator overnight, and then it is checked whether fertilization has occurred.

There is no difference between the classical technique and the microinjection technique in terms of superiority. Depending on the situation that prevents pregnancy, one of them is chosen by the specialist.