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Objective: To evaluate maternal serum inflammatory marker changes in intrauterine growth restriction (IUGR) pregnancies., Patients and Methods: 50 healthy pregnant women and 50 patients diagnosed with IUGR were enrolled. Maternal serum high sensitivity C-reactive protein (hsCRP), erythrocyte sedimentation rate (ESR), tumor necrosis factor-α (TNF-α), interleukin (IL)-6, and IL-10 levels were measured before delivery and neonatal outcomes were evaluated., Results: Birth weight, Apgar scores, and cord blood gas pH were lower in the IUGR group (p<0.001, p<0.001, p<0.001 and p=0.006, respectively). While the levels of ESR, hsCRP, IL-6, and TNF-α were higher, the IL-10 level was found to be lower in the IUGR group (p<0.001, p=0.033, p<0.001, p=0.004 and p<0.001, respectively). As ESR, hsCRP, and IL-6 levels increased, birth weight, Apgar scores, and cord blood gas pH decreased (p<0.001, p<0.001, p<0.001, p<0.001, p=0.02, p=0.002, p=0.001, p=0.03, p<0.001, p<0.001, p<0.001 and p=0.02, respectively). As TNF-α level increased, only birth weight and Apgar score at the 1st minute decreased (p=0.006 and p=0.048, respectively). As IL-10 level decreased, birth weight, Apgar scores, and cord blood gas pH decreased (p<0.001 for all). IL-6 (>3.2 pg/ml) had a sensitivity of 100%, specificity of 100%, PPV of 100% and NPV of 100%., Conclusions: While birth weight, Apgar score and cord blood pH decreased in IUGR cases, ESR, hsCRP, IL-6 and TNF-α levels increased. Combined measurement of these markers can be used for the diagnosis of IUGR.