In vitro fertilisation, commonly known as IVF, is the process of fertilising single or multiple eggs outside the body. This treatment can be performed by either using your own egg and sperm or using donated egg or sperm or sometimes both. The resulting sperms and eggs are evaluated for quality and then one or more of them are positioned properly in the uterus through the cervix. IVF is regarded as one of the most commonly opted treatment plans, and it accounts for more than 99% of assisted reproductive technology processes.

Who are suitable for IVF?
IVF can be helpful for you in case you have some issues with the egg quality or ovulation, fallopian tubes that are blocked in some way or endometriosis. It can also help you to get pregnant if your partner has problems with mortality and sperm count and when you have opted for donor eggs. About 1.5% of babies in the United States are conceived through the IVF process.

How does IVF work?
There are several steps through which IVF process works and the timeline follows the following steps:

    Stimulation for ovary: You will have to take a special kind of fertility drug for 8 to 14 days near the start of your menstruation cycle. This drug aids in the stimulation of your ovaries for developing multiple mature eggs to fertilise instead of a single one. You may also need to take an artificial hormone-like cetrofelix and leuprolide for keeping your body from releasing eggs very early.
    Development of follicle: When you are under all these medications, you will have to visit your doctor s office often for checking the hormone levels as well as ultrasound measurements for the ovaries.
    Getting the trigger shot: Once the follicles are ready, you are likely to receive a trigger shot, which is an injection causing the eggs for maturing fully and becoming capable of being fertilised. Your eggs are ready for being retrieved after about 36 hours of receiving this shot.
    Gathering the eggs: At this stage, you are likely to receive an aesthetic or ultrasound probe that is inserted through the vagina for checking the ovaries and identifying the follicles. Normally, about 8 to 15 eggs are retrieved through the insertion of a thin needle.
    Fertlisation: This is the most vital step, where an embryologist is going to examine the eggs before they are combined with the sperm and incubated overnight. Fertilisation happens at this particular time, but abnormal eggs are not fertilised.

Then the embryos slowly develop and are planted on the basis of your age and clinical condition. When the treatment is working, an embryo is implanted in the uterine walls and starts developing. 

IVF - How Does it Work?

When we talk about infertility attention usually falls on treatment for women. However, infertility can affect men as well. The condition of infertility, can be described as the inability to become pregnant for a period of 1 year despite having unprotected, well-timed sexual intercourse. A low sperm count is one of the primary reasons for infertility in men.

Typically there should be fifteen million sperm per milliliter of semen. Low sperm count refers to the ejaculation of less than a normal amount of sperm in semen. This can also be termed as oligospermia. A complete absence of sperm in semen is known as azoospermia. Low sperm count does not mean that you cannot impregnate your partner but it reduces the chance of a successful conception. Thus, one of the most common ways to treat infertility caused by low sperm count is IVF.

IVF involves harvesting eggs from the woman s uterus and sperm from the male partner and combining them in a laboratory to form a zygote. When IVF is used to treat male infertility, a semen analysis is the first step. This helps determine the patient s sperm count, sperm motility, volume, pH levels, white blood cell levels etc.
The ejaculated semen is then processed so as to separate the sperm cells from the plasma. In this process sperm cells with higher motility are identified and segregated. These cells have a higher chance of fertilizing the egg.
Sperm cells are then injected into the harvested egg. Some techniques may require the injection of 50,000 or more sperm cells while others such as intracytoplasmic sperm injection (ICSI) can be effective with a single sperm cell. Once the egg is fertilized, it is allowed to develop for a few days in the laboratory. 
Two or three embryos are then selected to be reintroduced into the woman s uterus with the help of a catheter. The remaining fertilized embryos are preserved in an embryo bank in case the pregnancy is not successful. If these need to be used later, the woman does not have to go through the initial stages of IVF treatment to stimulate the follicles and harvest eggs from the ovaries.
When it comes to IVF, the success rates are very high. However, one of the most common side effects is the birth of twins or triplets. This is because multiple embryos are inserted into the uterus. The number of babies born then depends on the number of embryos that are implanted successfully.

Declining Sperm Count - How IVF Can Help Deal With It?

It is as important for the man as it is for the woman to undergo certain tests before the IVF cycle is started. Fertility is not only an issue for a woman, but it also might be for the man in question. There are certain tests that need to be conducted on men before they can gear up for IVF:

1. Semen Analysis: One of the most important tests for male infertility is semen analysis. Sometimes, a man may be completely healthy, but his sperm production could be of poor quality. Semen analysis is done to provide an accurate evaluation of sperm number, the ability to move (motility), size and shape (morphology), as well as the consistency and volume of the sample collected.

2. Binding Test: Sometimes agglutination occurs where the sperms might stick to each other by their heads or tails. Sperm antibodies might cause this problem. The IVF treatment's success might be compromised if this happens. A simple binding test is done to determine this.

3. Trial Wash: This is also known as sperm wash. It is mostly done to remove chemicals from the sperm. Not doing a sperm wash might end up affecting the later stages of the IVF treatment. In this process, the misshapen and immotile sperm is separated so a clean sample of motile and healthy sperm can be collected.

4. TUNEL Assay: Since sperms build up about half of a child's genetic makeup, a TUNEL Assay or 'sperm DNA test' is required. This test is done to measure the sperm population that have fragmented DNA. Negative impacts on genetics can hamper the success of the fertility treatment.

TUNEL Assay is usually recommended to men with:
a) Leukocytes detected by the sperm analysis
b) Age approaching 50
c) A history of diabetes II type or prostatitis
d) Exposure to chemicals or prolonged heat at workplaces

5. Screening for Infectious Diseases: This test is done for both the partners to check for diseases like AIDS, Hepatitis C, and so on.

Tests Suggested for Men Before IVF

When a childless couple is not able to conceive, there are myriad paths that the couple may follow to obtain a solution. If IVF does not help the couple, then they can go in for surrogacy. In this method, another lady conceives, carries and gives birth to the baby created by the sperm and eggs of the intended parents. Let us find out more about surrogacy today.

Who can use it?
Surrogacy can be availed by couples who are not able to conceive due to many conclusive reasons including the absence of a womb or the malfunctioning of the same. Also, recurrent miscarriages can be one of the reasons. Further, a couple who has been through IVF or In Vitro Fertilisation implantation failure a number of times can opt for surrogacy.

How does it Work?
Full surrogacy, as it is known, is a process of implanting an embryo in a host body. This embryo is usually created using the egg and the sperm of the parents, or even a fertilised egg that has been donated by a donor, which is then fertilised using the sperm from the intended father. Also, this embryo may be created by using donor eggs and donor sperms. Partial surrogacy is also a method that may be used. When artificial insemination or intrauterine insemination (IUI) is used to create an embryo with the sperm from the intended father and the egg from the surrogate mother, then the process is known as partial surrogacy.

Chance of having a baby with surrogacy
The chance of having a baby with surrogacy depend on various factors. It depends on the ability of the surrogate to get pregnant, as well as her overall health. Before choosing a surrogate, it is important to put her through all the necessary tests to ascertain a good state of health. Further, the age of the egg donor is also a factor in such cases. The success of related procedures like IVF or IUI will also determine the chances of conception through this method. Furthermore, the quality of the elements used by the couple or the intended parents will also make a difference to the process and its efficacy. Yet, the most important factor includes the age of the woman whose egg is being used.

Difference between IVF and Surrogacy
In IVF, the eggs are gathered from the woman and the sperm is taken from her partner before an embryo is created and affixed in the uterus of the intended mother. In surrogacy, it is actually another woman who carries this lab-created embryo through methods like artificial insemination. The sperm may come from the father and the egg may be donated by someone else, in many cases involving full or partial surrogacy.

What is Surrogacy and how it is different from IVF

In vitro fertilisation (IVF) is a medical procedure followed for those women or couples suffering from infertility or for certain specific genetic problem. In the normal course, women or couples experience positive results within a few IVF cycles. However, in spite of reasonable pregnancy rates, some women may require few more cycles to achieve pregnancy. In such cases, in order to ensure a healthy pregnancy, the gynecologist may suggest the women undergo Endometrial Scratching before IVF. 

Endometrium explained in brief: 

The uterus is located in the pelvic region and it is in the size and shape of a pear. The inner cavity of the womb or uterus is protected by the tissue lining called endometrium, also called endometrial. The endometrium plays a significant role in supporting the pregnancy. 

The enhanced success of achieving pregnancy: 

The endometrial scratching procedure is a very simple one, which is resorted, so as to improve the results of IVF procedure. In this procedure, the gynecologist uses a very fine catheter and makes a small scratch on the endometrial lining. In fact, the scratch causes a kind of inflammatory reaction in the uterus. This inflammatory reaction induces the endometrium to be highly receptive to embryos during the successive menstrual cycle. This added receptivity enhances the success of pregnancy during the next menstrual cycle. 

Considering the higher level of success in achieving pregnancy, the endometrial scratching procedure has gained popularity in the IVF procedure. However, some of the other issues related to endometrial scratching may be as follows: 

Endometrial scratching optimises the uterine lining and thereby, makes it easier to continue the embryo implanting procedure. Normally, before the endometrial scratching procedure, the gynecologist may suggest endometrial biopsy. 
The endometrial procedure is usually suggested for those women who had two or more unsuccessful IVF procedures, despite having good quality embryos. However, in some cases, depending on the health of the patient and various other factors, the gynecologist may suggest this endometrial scratching at the very first IVF procedure. This procedure can be availed either for fresh embryos of the couple or frozen embryos or for the donor egg. 
Although this is a part of a surgical procedure; endometrial scratching is very simple and painless and it is done without administering anesthesia. The procedure does not require any hospitalisation. In fact, the patient can go home soon after the procedure. Except for a few pain killers, this procedure does not require any extensive medication. 
This is a safe and easy procedure. Neither does it lead to any side effects, nor is the procedure burdensome for your wallet. Many couples have been benefited by this endometrial scratching procedure.

Endometrial Scratching and IVF - Can it Help You Get Pregnant?

Egg Freezing, which is also known as mature oocyte cryopreservation, refers to the method through which reproductive potential is restored among women. Eggs get harvested from the ovaries, frozen and in an unfertilized manner and are stored for purpose of using them later on. The egg freezing procedure is recommended for those women, who would like to delay conceiving baby due to various kinds of reasons.

Before the freezing of eggs, it is important to first retrieve the eggs. Let us look at how the eggs are retrieved, followed by the procedure of egg freezing through two different ways.

Retrieval of Egg

Egg Retrieval takes place just like it is done in case of in vitro fertilization (IVF). Women would need to be put under medication for hormones or through injections, which shall lead to the stimulation of ovaries, leading to more eggs getting matured. After this women would receive the necessary medication to stimulate ovulation and then the extraction of eggs takes place through the use of a needle. Specialists perform this whole procedure by putting women under the effect of anesthesia and are also guided by ultrasounds. Once the extraction is completed, the freezing takes place.

There are two different techniques involved in the egg freezing process. They include:

Slow Egg Freezing Method

A substance called cryoprotectant is used in order to protect the biological tissues from getting damaged out of freezing. This slow freezing method of getting eggs freezed relies on low initial concentrations of crytoprotectant. The cryoprotectant in low concentration is introduced when the egg is at a relatively warm temperature and still continues to experience the usual functions of a living cell. Then the cryptoprotectant would spread all throughtout thus fill the egg, hence replacing most of the water inside the egg. The egg is then inserted into a small container made of plastic and ultimately get placed inside a cooling chamber. The lowering of temperature, to around -6 degree centigrade, takes place through injecting very tiny amounts of liquid nitrogen into the cooling chamber. The cooling process is controlled by a computer.

The main purpose of these techniques is to avoid ice crystals from getting formed in the egg. During the spreading of the cryoprotectant, if the ice crystals are still present, they can cause damage to the egg and hence the egg may not survive the process of thawing. Then the temperature is lowered further to around -32 degree centigrade. By this time, the egg s metabolic rate become slow. The container where the egg was placed, is then dipped inside the liquid nitrogen, forming a solid.

Rapid Egg Freezing Method or Vitrification

At the time of rapid freezing method, there is high concentration of initial cryoprotectant whereas the cell remains at room temperature. The egg is unable to stay for long in this temperature and thus gets poured immediately onto the liquid nitrogen. Cryoprotectant spreads at a rapid rate so as to avoid ice-crystal from getting damaged. Vitrification is a very new method for freeing eggs. Recent research has shown that vitrification of eggs largely improves the possibility for survival after thawing and the rates of pregnancy.

Different Techniques That Can Be Used For Egg Freezing!

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