Lunenburg is a town in Worcester County, Massachusetts, United States. The population was 10,086 at the 2010 census. For geographic and demographic information on the census-designated place Lunenburg, please see the article Lunenburg (CDP), Massachusetts. Lunenburg was first settled in 1718 and was officially incorporated in 1728. The name stems from one of the titles of King George II of Great Britain, Duke of Brunswick-LÃ¼neburg.
Difficult embryo transfer-Sometimes the reason for IVF failure is because the embryo transfer was technically difficult, because of cervical stenosis, or acute angulation of cervix. This means that the transfer is often traumatic, and is associated with bleeding.easons For Failure. One of the most frustrating problems in infertility today is IVF failure-also called implantation failure. This refers to infertile patients who have undergone many IVF cycles and produced beautiful embryos-but the embryos have consistently failed to implant for unexplained reasons.
View full size image. Some embryos fail to implant in the womb, while others implant successfully, leading to pregnancy, and a new study sheds light on why that's the case.