PMC6668159_01
Hemoglobin level, ferritin level, and body weight changes before and after patient admission. At around 180 days, the hemoglobin level unexpectedly decreased when her magnesium laxative overuse began again (arrow)
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Fig1
During outpatient follow-up, her anemia gradually improved; however, when her magnesium laxative overuse began again, her hemoglobin levels suddenly decreased, with no obvious bleeding episode, other causes of anemia, or dietary change (Fig. 1).