Anemia is a condition where the volume of red blood cells in the peripheral circulation is below the normal range, thereby inhibiting adequate oxygen transport to the tissues and disrupting the body's normal physiological functions. This research aims to analyze the factors that influence the incidence of anemia. This research uses a systematic literature review method using a prism diagram. A total of 25,270 articles, 13,560 articles were excluded because they did not meet the inclusion criteria. The 330 eligible journals were then eliminated by 320 topic discrepancies and research discrepancies. The results of the study show that of the 10 articles that have been studied, the causes of anemia that occur in pregnant women include knowledge, maternal age, gestational age, compliance with consuming Fe tablets, nutritional status, culture and protein intake. Several factors cause anemia in pregnant women, one of which is knowledge, maternal age, gestational age, compliance with consuming Fe tablets, nutritional status, culture and protein intake.
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