Complexity. IUI refers to one procedure. Prepared sperm is placed directly in the patient’s uterus when she is ovulating in order to aid fertilization. IUI may be performed in sync with a woman’s natural cycle or timed with fertility medications to stimulate ovulation. IVF, on the other hand, is a process which consists of several stages and requires more than one procedure: first the ovaries are stimulated using a series of fertility medications, then the patient undergoes egg retrieval in a day procedure under a mild anesthetic, then after embryos have been created and incubated in the lab, they are placed directly into her uterus in the embryo transfer procedure. Even with the use of fertility drugs, going through IUI is less physically demanding than undergoing IVF.

Secondary infertility (SI) is defined by doctors as the inability to conceive or carry to term a second or subsequent child. You may not have heard of it but you probably soon will, because it's on the increase. A US study revealed that, in 1995, 1.8 million women suffered from secondary infertility; in 2006, it was 3.3 million. SI now accounts for six out of 10 infertility cases.
In some cases, laboratory mix-ups (misidentified gametes, transfer of wrong embryos) have occurred, leading to legal action against the IVF provider and complex paternity suits. An example is the case of a woman in California who received the embryo of another couple and was notified of this mistake after the birth of her son.[94] This has led to many authorities and individual clinics implementing procedures to minimise the risk of such mix-ups. The HFEA, for example, requires clinics to use a double witnessing system, the identity of specimens is checked by two people at each point at which specimens are transferred. Alternatively, technological solutions are gaining favour, to reduce the manpower cost of manual double witnessing, and to further reduce risks with uniquely numbered RFID tags which can be identified by readers connected to a computer. The computer tracks specimens throughout the process and alerts the embryologist if non-matching specimens are identified. Although the use of RFID tracking has expanded in the US,[95] it is still not widely adopted.[96]
Post transfer – You’ll likely take progesterone and estrogen to improve implantation and pregnancy rates. If the transfer is successful, a blood pregnancy test will be positive in 10-14 days. From there, ultrasounds are used to ensure the implantation site as well as check for a heartbeat. The good news is that once a heartbeat is detected, the pregnancy has a 90-95% probability of the pregnancy resulting in a live birth.
Intrauterine insemination is less successful if the cause of infertility involves decreased egg quality, diseased Fallopian tubes, or endometriosis. IUI treatment cannot improve the quality of the eggs within the ovaries or repair damaged anatomical structure. As with advanced age, it may be advisable to move to IVF earlier in the treatment timeline with these diagnoses.
PCOS: Polycystic ovarian syndrome (PCOS) is an ovarian issue that can cause irregular menstrual cycles and make it difficult for women to ovulate — a crucial part of the conception and pregnancy process. Women with PCOS do not release eggs regularly, and their ovaries often have many small cysts within. IVF is a strong option for women with PCOS, since it can help their bodies ovulate to achieve pregnancy.
However, those percentages are from studies in which all the women had laparoscopy surgery to investigate the pelvic cavity for pelvic scarring and endometriosis. Laparoscopy surgery is no longer done as part of the routine fertility workup. Therefore, we are not finding all of the causes of infertility that we used to - leaving many more couples in the unexplained category.
All major restrictions on single but infertile women using IVF were lifted in Australia in 2002 after a final appeal to the Australian High Court was rejected on procedural grounds in the Leesa Meldrum case. A Victorian federal court had ruled in 2000 that the existing ban on all single women and lesbians using IVF constituted sex discrimination.[183] Victoria's government announced changes to its IVF law in 2007 eliminating remaining restrictions on fertile single women and lesbians, leaving South Australia as the only state maintaining them.[184]
There’s an intense emotional response to hearing, “There is no apparent reason for your infertility”. It can be difficult, maddening and equally frustrating for both you and your partner. People who do find out a specific cause find their situations difficult, too, of course, but knowing the “whys” makes it more bearable. In cases of unexplained infertility, couples feel that one reason, one cause is lurking in a shadowy corner. It just hasn’t been uncovered yet.

Regarding potential spread of HIV/AIDS, Japan's government prohibited the use of IVF procedures for couples in which both partners are infected with HIV. Despite the fact that the ethics committees previously allowed the Ogikubo, Tokyo Hospital, located in Tokyo, to use IVF for couples with HIV, the Ministry of Health, Labour and Welfare of Japan decided to block the practice. Hideji Hanabusa, the vice president of the Ogikubo Hospital, states that together with his colleagues, he managed to develop a method through which scientists are able to remove HIV from sperm.[39]

Luteal support is the administration of medication, generally progesterone, progestins, hCG, or GnRH agonists, and often accompanied by estradiol, to increase the success rate of implantation and early embryogenesis, thereby complementing and/or supporting the function of the corpus luteum. A Cochrane review found that hCG or progesterone given during the luteal phase may be associated with higher rates of live birth or ongoing pregnancy, but that the evidence is not conclusive.[79] Co-treatment with GnRH agonists appears to improve outcomes,[79] by a live birth rate RD of +16% (95% confidence interval +10 to +22%).[80] On the other hand, growth hormone or aspirin as adjunctive medication in IVF have no evidence of overall benefit.[30]