tubal ligation, one of several sterilization procedures in which both fallopian tubes are blocked to prevent conception from occurring. Through a small abdominal incision, the fallopian tubes are ligated in two places with laser; and the intervening segment is burnt, crushed, or excised. The procedure is less commonly performed vaginally. Complications of the procedure, which are rare but serious, include pulmonary embolism, hemorrhage, infection, and tubal pregnancy. The requirements for informed consent for sterilization procedures vary among states and institutions.
