There has been a weird finding in research done on IVF children - they are taller than average. Work done in New Zealand has found that by six years of age children conceived by IVF are taller. This occurred when fresh embryos were used, but not with frozen embryos. The higher quality of fresh embryos was the apparent reason for this.
No benefits nor disadvantages were seen in children born using frozen embryos than children conceived normally. The real issue is - Are fresh embryos really of higher quality? Donors giving frozen embryos are just as selective.
About one in thirty children are now conceived with IVF. It is girls who are notably taller. Another "weird" outcome is that mainly boys will be conceived if the embryos are left out in a dish for five days before implantation into the uterus.
No benefits nor disadvantages were seen in children born using frozen embryos than children conceived normally. The real issue is - Are fresh embryos really of higher quality? Donors giving frozen embryos are just as selective.
About one in thirty children are now conceived with IVF. It is girls who are notably taller. Another "weird" outcome is that mainly boys will be conceived if the embryos are left out in a dish for five days before implantation into the uterus.
