An Obstetrician and Gynecologist (OB/GYN) is a medical doctor specializing in women\'s reproductive health. They provide care related to menstruation, fertility, pregnancy, childbirth, and menopause. OB/GYNs perform deliveries, surgeries like C-sections, and treat conditions like PCOS, fibroids, and infections. They conduct routine exams including Pap smears, ultrasounds, and prenatal screenings. Their role is vital in ensuring women\'s health through all stages of life.