This report describes the surgical experience gained from 32 patients with substernal goitre, operated on during January 1995 to December 1997. The material corresponds to 15.7% of the total thyroidectomies performed. The diagnosis was clinical. In spite of 65.6% of the patients being asymptomatic, breathing problems, dysphagia and hyperthyroidism were observed. The patients underwent tests of thyroid function, simple chest radiograph and computerized tomography of mediastinum. All patients underwent surgical treatment through a transverse cervical incision. Two patients (6.25%) needed median sternotomy. Vocal cord palsy (3.12%), transient hypocalcemia (6.25%) and one death due to cardiac causes (3.12%) were the complications that occurred.