A case of postpartum thyroiditis following SARS-CoV-2 infection

Postpartum thyroiditis (PPT) is characterized by mild thyrotoxicosis occurring within one year of parturition commonly followed transient hypothyroidism. Having genetic background autoimmune thyroid disorders a risk factor for it because the immune reactivation during postpartum period trigger PPT. Pandemic COVID-19: caused SARS-CoV-2 infection global health problem, and occurrence Graves’ disease Hashimoto’s after viral have been reported but PPT with COVID-19 has never reported. A 29-year-old woman developed general fatigue four half months parturition, was diagnosed as having PPT: month before, she had COVID-19. Hereafter, we define date delivery Day 0 to make timeline clear. PCR on 103, its disappearance from upper airway confirmed 124, 136. She euthyroid 95, thyrotoxic Serum thyroglobulin (Tg) concentration normal in presence anti-Tg antibody, other thyroid-related autoantibodies were negative, ultrasonography, gland size no evidence increased vascularity. Thyroid function returned 172 without any specific drug therapy. In conclusion, although clear causal relationship could not be found, documented world’s first case following