Steps to return frozen embryos

Do you need a detailed explanation of how to return frozen embryos? So all you have to do is just read the article, it will answer most of your questions.

Let's go over the specifics of how to return frozen embryos in the following, along with some crucial information.

Steps to return frozen embryos

The steps to return the frozen embryos are divided into two branches as follows because they are largely dependent on the woman's body, including the timing of her natural menstrual cycle (FET cycle) or her hormone replacement therapy cycle (HRT cycle).

• How to return frozen embryos based on the menstrual cycle naturally

The uterine lining naturally thickens during the menstrual cycle as part of a healthy woman's body system, and the frozen embryos are returned by performing the following steps:

1. Monitoring the menstrual cycle by examining the developing egg follicles on the ovary and the thickness of the endometrium through ultrasound imaging.
2. Stimulating ovulation or waiting for the body to do it on its own and then transferring the embryos about a week after ovulation.
3. Giving progesterone in the form of injections or pills during the second half of the cycle to support the lining of the uterus.
4. Inserting the catheter through the vagina into the cervix to the uterus and injecting the frozen embryos after thawing them, and one or more can be injected. 

• Procedures for transferring frozen embryos based on the cycle of hormone replacement therapy

The steps to return the embryos in this way are as follows: This procedure is typically performed for women who experience irregular menstruation, and for this they require medication to prepare the lining of their uterus.

1. The mother receives pills or injections of the hormone estrogen to stimulate the lining of the uterus and increase its thickness.
2. Taking hormonal therapy from progesterone to make the uterus receive embryos, and this drug is usually taken after observing the egg cycle with ultrasound imaging and reaching the second half of the menstrual cycle.
3. Inserting the catheter through the vagina into the cervix to the uterus and injecting the frozen embryos after thawing them. This is usually done a week after receiving the progesterone hormone, and one or more can be injected. 

How to thaw frozen embryos

It was previously mentioned that the last steps to return frozen embryos are to thaw the embryos and insert them into the vagina , and this raises the question about the mechanism of thawing these embryos. Voici how melting is carried out:

1. Remove the embryos from the liquid nitrogen that was preserved in it.
2. Warming the embryos to bring their temperature to normal body temperature .
3. Medical removal of protective chemicals from fetuses.
4. Ensuring that the embryos are alive so as not to be exposed to useless effort and fatigue, and this is done by exposing the embryos to the stage of expansion that lasts for 1-2 hours, during which the clinical embryologist studies the signs of life on these embryos. 

Mechanism for selecting the best frozen embryos to start the steps of retrieving frozen embryos

Many people are interested in learning how the best frozen embryos are chosen to begin the steps of retrieving frozen embryos because the procedure is very expensive and demanding of the mother. The answer is that each of the following is done by the experts to accomplish this:

• examining the embryos to record their quality before freezing them. The embryos are also frozen separately from each other to ensure their identity and quality levels.
• Giving the mother the best frozen embryos possible because high-quality frozen embryos are already being produced.

Can frozen embryos be refrozen?

Medically, this is possible. The effect of this matter on pregnancy in the event of using frozen embryos again is considered slight because it was found that thawing the frozen embryos for the first time keeps them alive by 76.3%, while thawing frozen embryos twice keeps them alive by 74%, and here it is noted that the effect of this matter on pregnancy is considered slight because it was found that thawing the frozen embryos for the first time keeps them alive by 76.3%.