Intrauterine insemination(IUI)consists of collecting a sample of sperm from the seminal fluid and injecting it into the endometrial cavity through a small catheter.The use of this procedure has been established for the treatment of oligospermia and changes in seminal volume or viscosity.
In Vitro fertilisation involves stimulating the female ovaries to produce eggs by giving hormones and taking them out to meet with the male sperm in the laboratory .The resulting embryo thus formed is placed back into the uterus from the vagina to cause pregnancy.
IVF is unlikely due to very low mobile sperm count in the ejaculated sperm, in case of obstruction of the male reproductive tract not amenable to surgical repair, abnormal sperm morphology , frozen sperm and in cases of repeated IVF failures.