The College of Education for Pure Sciences discussed a master’s thesis tagged with “Assessment of the levels of Fibroblast growth factor 21 and Fetuin-A and a number of physiological parameters in patients with Covid 19 after infection in the city of Kirkuk”, for the student Hussein Shihab Ahmed Qassab, under the supervision of the professor. Owner Jumaa Abdul Rahman, Prof. Sabah Hussein Khurshid. The study aimed to evaluate some of the physiological and biochemical effects after contracting Covid 19 disease in the city of Kirkuk, as well as an increase in the levels of fibroblast growth factor 21 (FGF21)) and an increase in the level of the lipid profile, and the increase in the level of some liver enzymes and their decrease in some The other, a decrease in the level of Fetuin-A, a decrease in the level of blood proteins, and no effect on urea and creatinine levels after recovery from Covid 19. The researcher recommended conducting future studies to evaluate the levels of IL-1, IL-6 and TNF alpha to know the complications of COVID-19 infection after infection, And studying the extent of the effect of some drugs used in the treatment of COVID-19 patients on cirrhosis of the liver after recovery, as well as the impact of COVID-19 infection on the concentrations of a number of lipid kinetics after recovery from COVID-19.