What is the role of iodine deficiency in the etiology of papillary thyroid carcinoma (PTC)?

Updated: Jun 18, 2020
  • Author: Ponnandai S Somasundar, MD, MPH, FACS; Chief Editor: Neetu Radhakrishnan, MD  more...
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Several reports have shown a relationship between iodine deficiency and the incidence of thyroid carcinomas. Many other conditions have been considered as predisposing to papillary thyroid cancer, including oral contraceptive use, benign thyroid nodules, late menarche, and late age at first birth. [21, 22] Tobacco smoking seems to be associated with a decreased risk of thyroid cancer, but, obviously, it poses more health hazards than benefits. [23]

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