Thyrotoxicosis is a possible complication of COVID-19. A study in 2020 included 9 patients with COVID-19 PCR positive. The results revealed; - 65% patients i.e. 6 out of 9 patients, thyrotoxcosis appeared after remission of COVID-19. The time interval ranged from 17-40 days. - In 35% patients i.e. 3 out of 9 patients, thyrotoxicosis symptoms manifested at the time of admission. - The hallmark of thyrotoxicosis is neck pain which was present in 90% patients i.e. 8 out of 9 patients.