Abstract The present study was designed to detect the effect of toxoplasmosis in the thyroid hormones level Samples were collected during the period from July2019 to January 2020. Where the separated serum was preserved at a temperature (-20) until use. The enzyme-linked immunosorbent technique (ELISA) was used to detect toxoplasmosis. Hormone levels (TSH, TSH, T3 and calcitonin) were also measured using ELISA technology, Hormonal study, the results of the current study showed significant increase (P