A low serum ferritin level typically indicates reduced iron stores in the body. This can suggest iron deficiency, which may lead to anemia if left untreated. Iron deficiency can result from inadequate dietary intake of iron, chronic blood loss (such as from gastrointestinal bleeding or heavy menstrual periods), or conditions that impair iron absorption or utilization. Symptoms of iron deficiency anemia may include fatigue, weakness, pale skin, shortness of breath, and dizziness. If you have a low serum ferritin level, it's important to follow up with your healthcare provider for further evaluation and appropriate management.