Gynecology expert witnesses practice in a variety of fields, including obstetrics, reproductive endocrinology, maternal-fetal medicine, and minimally invasive surgery. Some of the most common specialties include high-risk pregnancy management, infertility treatment, gynecologic oncology, and pelvic floor disorders. They can opine on the effects of delayed diagnosis, surgical errors, improper prenatal care, and deviations from gynecologic standards of care.