Implantation is a research area that focuses on the process by which embryos attach to the uterine lining and establish the initial stages of pregnancy. This process involves complex interactions between the embryo and the maternal endometrium, including cellular signaling, protein expression, and immune responses. Implantation research aims to understand the molecular and cellular mechanisms involved in successful embryo implantation, as well as factors that can affect implantation success such as hormonal imbalances, genetic abnormalities, and environmental factors. This research has important implications for assisted reproductive technologies, contraception, and understanding pregnancy complications such as miscarriage and ectopic pregnancy.