ABSTRACT: Background: The high incidence of low birth weights (LBW) is due to interrelated factors from both the mother and the fetus. Maternal health status affects birth weight directly. Periodic health checks for pregnant women (antenatal care visits) are one of the main activities in maintaining the health of the mother and the fetus. Objective: To examine the risk factors for LBW. Method: This was an observational analytical study with a case-control approach. The sample was 48 respondents, with 24 mothers experiencing LBW as the case respondents and 24 mothers whose babies were in the normal weight range as the control respondents. The size of the sample was determined using a 1:1 comparison with a purposive sampling method. Findings: The average height of the respondents was 151.23 cm, weight gain was 9.00 kg, systolic blood pressure was 113.75, mid-upper arm circumference (MUAC) was 23.58 cm, gestational age was 37.42 weeks, and infant birth weight was 2604.17 g. On average, the examination of multiparous status, fetal position, head presentation, counseling, and laboratory tests were also determined. A chi-squared test showed no statistically significant relationships with LBW for the height of the pregnant woman, the blood pressure, the fetal position, the status of TT vaccinations, the administration of iron tablets, counseling, or laboratory examination. In contrast, weight gain, MUAC, fundal height, parity, and maternal age had significant relationships with LBW. Conclusion: The maternal age, weight gain during pregnancy, MUAC, fundal height, and parity were associated with LBW.