To review the literatures on the risk factors of low birth weight. Methods: Google, pub med are used for search of articles with relevant terms. Results: In this study, 21 articles are taken into considerations and they are clearly evaluated to draw a conclusion. Conclusions: Mothers belonging to lower socioeconomic class had higher chance of delivering low birth weight babies. Parity has a significant relationship with birth weight. There is significant association of PIH, other infections at delivery; malnutrition and anemia have a significant association with LBW.

Keywords : low birth weight, maternal factors, risk factors.