[Postoperative hypothyroidism]

The author consider the problem of hypothyroidism after thyroid surgery for Basedow's disease and multinodular, toxic and nontoxic, goitre. In the behavior of such surgical complication, in addition to thyroid remnant size and technique employed many others biological factors, whose nature up to today is not well defined, are the cause. This multifactorials genesis makes very unforeseeable, in each case, the long term result of surgery in the form of hypothyroidism. However, the hypothyroidism after surgery may be the consequence of a phase of functional adjustment, and then to start substitution therapy immediately after surgery may have opposite effect.