The postoperative hypoparathyroidism was studied in 176 patients that underwent a total o a wide subtotal thyroidectomy. The rate of this complication was compared between patients receiving a parathyroid autotransplantation (75 cases) and patients that did not. A 2.9% of non-transplanted patients developed a permanent hypoparathyroidism, that was observed in a 1.3% of non-transplanted patient. At variance, a transient hypoparathyroidism was twice more frequently observed in the transplanted group.