Currently, transferring embryos on day 5 is the trend of many large IVF centers in the world. Transferring embryos at the blastocyst stage brings a higher success rate than transferring embryos on day 3 because the implantation potential of embryos on day 5 is much higher than that of embryos on day 3.

Embryo culture is carried out in a special culture medium. The culture process only takes a short time, so all stages must be carried out precisely and meticulously to ensure a high success rate when introduced into the woman's body.

Embryo culture is an important step in the process of having a baby through artificial insemination. Culture helps increase the success rate when the embryo is transferred to the mother's uterus or fallopian tube.

In vitro fertilization (IVF) is applied to infertile couples. In which, evaluating embryo quality is an important step to make the right choice, contributing to increasing the success rate of implantation.

The embryo is formed in the 5th week (from the moment of fertilization) and develops for 6 weeks before being called a fetus. This is a very important stage, forming the basic shape of a baby, the organs in the body.

Currently, there are many different techniques for cryopreservation of sperm, but for sperm samples with extremely poor quality, special preservation measures are needed, both to ensure convenience, so that each time of thawing, there is enough sperm needed for one IVF procedure, and to still have enough frozen sperm to use for the next time without having to thaw it many times.

Frozen embryo storage is one of the methods commonly used in an in vitro fertilization cycle, they contribute significantly to optimizing the ovarian stimulation protocol, embryo transfer as well as solving the problem of excess embryos after transfer. So what exactly are frozen embryos and what is the maximum embryo storage time?

Currently, in addition to the classic in vitro fertilization method, ICS, intracytoplasmic sperm injection, day 5 embryo transfer technique, assisted hatching. A new method - Vitrification, brings more advantages than the old methods.