Failure of implantation with IVF can occur due to problems with the quality of the egg or sperm, smoking, suboptimal laboratory culture conditions, and problems with uterine receptivity. Problems with uterine receptivity can occur due to fibroid polyps, septum, hydrosalpinges, chronic endometriosis, and inadequate development of the uterine line (thin endometrium).
Read the full article on: Embryo Implantation Failure: Causes, Symptoms & Treatments ( 76).