Background and Objectives: Physiological parameters at birth are the main factors for somatic and mental growth in infants. The aim of the study was to investigate the impact of maternal hematologic concentration and BMI measures in primiparous women on some neonate physiological parameters.Materials and Methods: In the present study, 126 pregnant women having referred to the two hospitals of Hafez and Shushtary were selected to be included. After obtaining the informed consent, hematocrit, hemoglobin, platelet, and GCT values of participants were recorded at the 36 week prenatal visit. The main outcome measures included birth weight and length, head circumference, apgar score, and reflex score at delivery. The data were analyzed by pearson and linear regression analysis.Results: Mother age, height, education, occupation, and sex of infants did not correlate significantly with neonate birth weight, legnth, head circumference, apgar score, and reflex score. However, there was found to be a significant correlation between the intervening factors of BMI, weight, pregnancy weight gain, hematocrit, hemoglobin, and GCT values and the neonate birth weight.Conclusions: The findings of this study showed the importance of mother weight at the beginning and during pregnancy. Pregnant mother nutrition status, weight control, and hematologic indices are the important factors to take care of for the health of neonates to be ensured.