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A hemoglobin of 9 is low, but not necessarily bad. Having a low hemoglobin is called Anemia. Symptoms of anemia include fatigue, lightheadedness, dizziness, palpitations, low blood pressure, fainting, etc. Many people with anemia do not experience any symptoms and can tolerate hemoglobin levels as low as 2. Other people who experience symptoms may require blood transfusions. There are many causes of a low hemoglobin. In a girl your age the most common ones would be anemia from iron deficiency and heavy bleeding during your menstrual periods. You should have your family doctor determine the cause of your low hemoglobin and treat it accordingly.

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14y ago

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