Intraoperative fluid management for the pediatric surgical patient is a critical element of the anesthetic care plan. In contrast with adult patients, the fluid management is systematized by the use of established protocols that calculate fluid on a per kilogram basis. Children are relatively volume sensitive, and mismanagement of fluid and electrolytes can contribute to morbidity and mortality in infants and young children undergoing even the simplest procedures. Failure to correct volume deficiencies can lead to multisystem failure and death. Inappropriate overhydration can result in pulmonary edema and respiratory problems that can prove fatal. Regardless of the fluid management plan, perioperative fluid management must be flexible and take into account the physiologic development and age of the pediatric patient. The goals of intraoperative fluid management are to restore intravascular volume, maintain cardiac output, and, ultimately, ensure provision of oxygen to the tissues.