Infertility is a disease generally recognized as a complication of the reproductive system, impacting both men and women. It has undoubtedly been acknowledged as a universal health issue for several years, and within each year, it has been quite observable to identify the increasing rates of infertility attributable to disease, hormonal imbalances, chemical exposures, and lifestyle choices. Across the years, there have been increasing developments of fertility treatments readily available, and of the numerous treatments, the most effective and prominent treatments include intrauterine insemination (IUI) and in vitro fertilization (IVF) treatments. The processes of carrying out these treatments vary in nature and, in particular, possess a variety of ethical issues, such as the accessibility of these treatments for targeted individuals like the disadvantaged, single women, and same-sex couples. Throughout this paper, comprehensive research will be brought forth towards introducing such fertility treatments and their prominence in the United States vs Spain, along with their accessibility, success rates, religious viewpoints, and a generalized examination regarding the relationship between infertility and mental health.