This study was conducted on patients with diabetes, in Samarra General Hospital. In this study, 50 blood samples were collected, 30 of which were taken from patients with diabetes, 20 of which were from non-diabetic people of both sexes, for ages (18_65) and for the period December 5, 2022 to the period is 1 February 2023. Blood was separated to obtain serum for biochemical analyses, and whole blood was sampled for CBC testing. The sugar test was conducted to ensure the presence of diabetes first, and the study confirmed that there was a significant increase in the patients compared to the control group, where the FBG test was conducted, and we note that there is a significant increase in the FBG test for patients with diabetes. A uric acid test was conducted, and the results showed a significant increase in patients compared to the control group, as the results of the analysis indicated that patients with diabetes appeared to have a significant increase in uric acid levels. The urea and creatinine test did not find a significant difference compared to the control group. As for the cbc test, the results for rbc, wbc, plt, hb, pcv showed no significant difference.