Diabetic neuropathy is a form of nerve damage that can occur in people who have diabetes. High blood sugar (glucose) induced nerve damage in every part of the body. The nerves in the legs and feet were the most frequently affected. The extent to which a diabetic patient's body is impaired is calculated by the degree of nervosa harm.The purpose of this present study is estimation BMI,IL-10 , nesfatin-1 and HS-CRP in Iraqi DN patients before and after treatment via tegretol as well as it is the first study sheds light on the relationship between Nesfatin -1 and other parameters ( BMI,IL-10 and HS-CRP) also predication of Nesfatin-1 as a newly biomarker in patients with diabetic neuropathy. The present study consist of from 30 cohort G1 as healthy group the age range from (30-50 ) years while diabetic neuropathy patients was divided into subunit group one of them before treatment (G2) age range (30-60 ) years whilst group 3(G3) age range ( 30-60 ) years after treatment ,from the results we concluded the effect of treatment by tegretol on BMI ,IL-10 and HS-CRP , but we found non-significant this treatment on Nesfatin-1 levels for patients undergo with tegretol treatment this indicated that Nesfatain -1 can't be utilize as a biomarker in those patients