In the United States, an OB-GYN residency typically lasts four years, during which medical graduates undergo comprehensive training in both obstetrics and gynecology. This residency program is designed to meet all the requirements set by the Accreditation Council for Graduate Medical Education (ACGME) and is fully accredited by the Residency Review Committee (RRC). Throughout these four years, residents participate in a variety of rotations that cover core areas such as prenatal care, labor and delivery, gynecologic surgeries, and outpatient clinics. Additionally, they gain exposure to subspecialties like maternal-fetal medicine, reproductive endocrinology, gynecologic oncology, and urogynecology. The program aims to develop well-rounded OB-GYN physicians equipped to provide comprehensive women's healthcare, including managing high-risk pregnancies and performing complex surgical procedures.