Round ligaments are fibrous tissues that connect the uterus to the inguinal canal in the pelvic region. They play a crucial role in supporting the uterus during pregnancy, helping to maintain its position as it expands. These ligaments are typically about 10 to 12 centimeters long and are composed of smooth muscle and connective tissue. As the uterus grows, the round ligaments stretch, which can sometimes cause discomfort or pain known as round ligament pain. This is a common experience for many pregnant individuals.