Can twin pregnancies be produced using IVF if only one embryo is transferred?

How is it possible?  Could it indicate that a diagnosis of the couple’s infertility must be required before starting an assisted procreation process? A recent study published in Fertility and Sterility evaluated the rate of twin pregnancies – both monozygotic (identical twins)...

Children born through surrogacy and his mother have more medical problems

Children born after gestational surrogacy, and the mothers themselves, have more medical issues Issues related to gestational surrogacy are currently the subject of considerable social debate. In relation to this, we have contributed in a book on this topic, where this matter is...

Social Freezing. Has it medical and ethical difficulties?

“To freeze the eggs of their female employees, “in order to attract and promote female talent”. Occasionally, and for various reasons, some women wish to postpone motherhood. The most common procedure used to achieve this is to freeze their eggs while young, generally...

Around 30% of births after ovarian stimulation occur after a single cycle

When assessing the success of assisted reproduction techniques, one important thing to consider is to be able to determine the likelihood of having IVF child after several stimulation cycles. A recent article evaluated this in a group of 112,549 women who started their first in...

Nearly 1000 children born through surrogacy are registered in Spain each year

The Swiss-based International Social Security Association estimates that every year, surrogate mothers give birth to around 20,000 children worldwide.Agencies and parents estimate that between 800 and 1,000 go on to live with Spanish parents, but there are no official figures....

Ethical problems relative to “embryo selection” to avoid multiple pregnancies

A recent article published in Fertility and Sterility(see HERE)  affirms that, in the last four decades, some advances have been made in the pregnancy rate obtained by in vitro fertilization (IVF). However, this apparent success is accompanied by the disadvantage of a vast...

Human oocytes produced for the first time from donors’ ovarian tissue. A positive step to preserve women’s fertility with cancer

An article has just been published in Molecular Human Reproduction (see HERE) describing the production of human oocytes from ovarian biopsies from ten healthy women. In the study, the authors were able to grow ovarian follicles from the biopsy tissue until their final phase of...

Having a baby without having to be pregnant? Considerations of Surrogate Pregnancy

A report published in Study.com titled “Ethical Considerations of Surrogate Pregnancy” (see HERE) begins with this suggestive phrase, “It sounds like a good option right? Especially for those who cannot get pregnant or cannot physically carry a baby. But there...

Frozen embryos donation figures. Human embryos transferred increased over the years

It is difficult to find objective data on the practice of embryo donation. Now, a study published in the American Journal of Obstetrics and Gynecology has provided data on this topic for the period 2000 to 2013 in the United States. As we know, with the use of in vitro...

Ovarian insufficiency infertility can be resolved without resorting to egg donation

Scientists from Stanford University (USA) and the St. Marianna University School of Medicine in Kawasaki (Japan) have helped a woman suffering from early menopause to give birth to a baby by way of a technique known as “in vitro activation”. Patients suffering from ovarian...