The medial umbilical fold is a structure in the abdomen that arises from the remnant of the fetal urachus. It extends from the umbilicus to the bladder and is an important anatomical landmark. There are several synonyms for this structure, including the median umbilical ligament, the urachal remnant, and the medial ligamentum teres. The medial umbilical fold is an important structure for surgeons to be aware of during procedures that involve the abdominal wall. It can also be used as a reference point during imaging studies to identify the location of surrounding structures within the abdomen. Understanding the different synonyms for this structure can help healthcare professionals to communicate more effectively when discussing abdominal anatomy and surgical plans.