What makes a good blastocyst

Having said that, some women who have just the one embryo like to check its number of chromosomes to avoid the risk of miscarriage. Others might think that they only have the one embryo, and they want to give it a chance.

It is a completely personal choice. Of course, the main thing that will impact embryo quality is the quality of the egg and sperm. A woman is born with all the eggs she will ever have , and the number and quality of these eggs is genetically determined, and decreases over the years. However, the environment the eggs are growing in can be improved by lifestyle factors, just like any other cell in the body. Take a look at our top tips for improving fertility for how you can increase your chances of success at home.

If our male diagnostic fertility tests identify an issue with your sperm, there are many tools in our toolbox which we can use to identify the best sperm for treatment and help successfully fertilise your eggs. Also known as, intracytoplasmic sperm injection, this is a really phenomenal technique; as opposed to normal IVF, where the egg and sperm are put together in a petri dish, with ICSI we directly inject a single sperm into the centre of the egg, so overcoming that physical barrier between the egg and the sperm.

We would generally recommend ICSI for those with low sperm count or poor sperm quality. Patients often worry that something will happen to their precious gametes and embryos, and we always reassure them of the robust protocols we have in place in our cryolabs to keep all your frozen eggs, sperm and embryos safe. We continuously monitor the temperature and the liquid nitrogen levels of our cryopreservation tanks, and the cryolab is regularly checked by embryologists.

When it comes to success rates, IVF using previously-frozen eggs has a very comparable success rate to fresh eggs — almost exactly the same. Next Early pregnancy ultrasound findings and pictures at 5 to 6 weeks Next. Table of Contents. Advanced Fertility Center of Chicago. Fertility BLOG. Higher Standards - Proven Results. IVF failed — what to do next after a failed cycle in order to have success with the second IVF attempt? Read More. Fertility Care. Fertility Research. IVF - Blog.

Male Fertility. Higher Standards - Proven Results We know you have many choices for fertility care. The letters indicate the quality of the inner and outer cell mass. To put it into perspective an embryo with an A grade is excellent quality, B is good quality, C is fair quality, and D is poor quality.

In general, embryos that are very slow growing or stop growing altogether are unlikely to develop into a healthy embryo. This tool is used in addition to other factors to determine the best embryo for transfer. The embryologists will give you an honest assessment of the quality of your embryos and your chances for successful IVF treatment.

At IVI, we transfer blastocysts on day 5 in nearly all cases, because only the best embryos will make it to that stage in the development process. If you want more information about the process of embryo selection, why not visit the clinic during one of our bi-weekly open evenings where one of our embryologists will be able to answer all your questions. Reserva hora. More than 1. Reaching the end of the fertility trail with a prize to cuddle can be a physically and emotionally draining trek that covers so much uncharted territory.

Embryo grading is one of the many bridges you cross along the way. Knowing what embryo grading is all about can make the journey easier and even dare we say it? Some people will have embryos transferred to the uterus once they reach day 3. Exactly what are day 3 embryos? The embryos are still at the same size as an unfertilized egg. You can think of them as birthday cakes divided into slices. Research shows that 8 is best. Day 3 embryos that had 8 or more cells showed a significantly higher live birth rate.

However, not all good quality embryos follow the rules. Day 3 embryos are graded 1 to 4 or 5 depending on the lab protocol with 1 being the highest grade. So, what are embryologists looking for?

They want to see that each cell has a nucleus and that the cells are of equal size. They also check for fragmentation. This sometimes occurs when cells divide. Think of the crumbs falling off that birthday cake. Up to 20 percent fragmentation is fine.