Transabdominal Ultrasound: This involves placing a transducer on the abdomen after applying a gel to enhance sound wave transmission. It is often used for broader views of the pelvic organs. Transvaginal Ultrasound: This involves inserting a specialized transducer into the vagina, providing a closer and more detailed view of the pelvic structures. It is especially useful for early pregnancy assessment and detailed examination of the uterus and ovaries.