Background: Thyroid diseases are common, especially in women, and the incidence increases with age, so that about 10 % of the population over the age of 65 suffers from thyroid dysfunction Aim: The current study aims was to evaluate the serum levels of cardiac troponin, high-sensitivity Creactive protein, T3 and T4 with TSH, LDH and creatine kinase in women with thyrotoxicosis and hyperthyroidism