Male and female infertility is a problem that is relevant throughout the world. According to statistics, every fifth couple faces the inability to conceive a child. Therefore, more than 50 million couples of reproductive age require the use of assisted reproductive technologies. Unfortunately, the number of infertile couples is growing every year. Luckily, modern fertility
Fertilization occurs in the fallopian tubes. Only one sperm gets the chance to inseminate the egg. Its nucleus merges with the egg cell and gives start to pregnancy. Before this miracle happens, they have to pass a long way. That’s why, in this post, we will overview the whole process so that you could see what happens on every stage.