Sixty eight patients with toxic adenoma (TA) operated on in the period 1985-1992, were analyzed. The manifestation of hyperthyroidism in TA (in 55.88%) significantly depended on the gender of the patients (68.42% in men and 51.02% in women) and on the size of node. In nodes larger than 5 cm in diameter hyperthyroidism appeared in 76.92% of patients and in none with the nodes smaller than 2 cm. The degenerative changes in the nodes depended on pathohystological type of adenoma, and not on the size of nodes. On patohystological examination three carcinomas were found in TA, two papillary and one follicular. The surgical treatment of TA was the optimum way of treatment--the therapy of choice. Along with fast, complete and clear effects, the minimum percentage of complications (4.41%) developed that were mild and of short duration. The enucleation of nodes with capitonnage was absolutely sufficient in the operative treatment.