Background/aim: The aim of this study was to find whether maternal visceral tissue (VAT) or subcutaneous fat tissue (SCFT) thicknesses are associated with CRP, HbA1c, lipid, and biochemical parameters in the first trimester of pregnancy. Materials and methods: Ninety pregnant women were enrolled. Body mass index (BMI), VAT, and SCFT were measured. The best cut-off points for grouping subjects were found to be 4 cm for VAT and 2 cm for SCFT. Venous blood samples were collected. Results: VAT was higher than 4 cm in all cases with high BMIs. High CRP and HbA1c were found in 45.5% and 18.2% of cases with VAT over 4 cm, respectively. Conclusion: Besides overall obesity, VAT thickness is the most important parameter. Decreasing obesity may prevent pathologies caused by inflammation during pregnancy as well as decrease the risk for future metabolic and cardiovascular disorders.