en Obstetrics & Gynicology Obstetrics & Gynicology Original Article Original Article <span style="font-size:14px;"><span style="font-family:Times New Roman;"><span style="color:#0033ff;"><strong><em>Background</em></strong>:</span> Variations in placental thickness are associated with increased perinatal morbidity and mortality. However, only very few studies have been established on the correlation between placental thickness with birth outcomes. This study correlated placental thickness in 2^nd and 3^rd trimesters with neonatal outcome, maternal weight gain, and body mass index (BMI).<br> <span style="color:#0033ff;"><strong><em>Methods</em></strong>:</span> A total of 116 patients aged between 20 to 50 years with singleton pregnancy and regular menstrual history (and sure about their last menstrual period) were included. Placental thickness was measured at 24 and 36 weeks by ultrasound and was divided into three groups: Group A (normal placenta), Group B (thin placenta), and Group C (thick placenta); and correlated with neonatal outcome, maternal weight gain, and BMI.<br> <span style="color:#0033ff;"><strong><em>Results</em></strong>: </span>Out of the 116 pregnant women, 55 (47.4%) were primigravida and 61 (52.6%) were multigravida. Six patients (3.6%) delivered pre-term before 36 weeks. In the 2^nd and 3^rd trimesters, most cases had normal placental thickness (Group A; 93.1% and 92.7%), followed by thin placenta (Group B; 5.2% and 7.3%) and thick placenta (Group C; 1.7% and 0), respectively. Two patients with thin placenta had neonatal death. A significant positive correlation was found between birth weight and placental thickness (at 24 weeks; 0.516^r, <em>P</em><0.00001 and at 36 weeks; 0.669^r, P<0.00001) and maternal weight gain and birth weight (0.563^r, P<0.00001).<br> <span style="color:#0033ff;"><strong><em>Conclusion</em></strong>:</span> Placental thickness on ultrasonography demonstrated well the correlation between birth weight in 2^nd and 3^rd trimesters and increased incidence of antenatal and postpartum complications resulting from thin placenta.</span></span> Gestational diabetes, gestational weight gain, fetal growth, placenta previa 562 567 http://caspjim.com/browse.php?a_code=A-10-1852-1&slc_lang=en&sid=1 Gauri Raghunath Shinde drgauri8@gmail.com 100319475328460032138 100319475328460032138 Yes Department of Obstetrics and Gynecology, Krishna Institute of Medical Sciences (Deemed to be) University, Malkapur, Maharashtra, India Nitin Kshirsagar nkshirsagar49@yahoo.com 100319475328460032139 100319475328460032139 No Department of Obstetrics and Gynecology, Krishna Institute of Medical Sciences (Deemed to be) University, Malkapur, Maharashtra, India Manish Laddad drmanishald@gmail.com 100319475328460032140 100319475328460032140 No Department of Obstetrics and Gynecology, Krishna Institute of Medical Sciences (Deemed to be) University, Malkapur, Maharashtra, India Vaishnavi Shivade vaishnavishivade@gmail.com 100319475328460032141 100319475328460032141 No Department of Obstetrics and Gynecology, Krishna Institute of Medical Sciences (Deemed to be) University, Malkapur, Maharashtra, India