Low hemoglobin levels are usually caused by iron deficiency, blood loss, or certain diseases like anemia or kidney problems. Without enough hemoglobin, your body’s cells get less oxygen, leading to fatigue, weakness, and pale skin. Poor diet, menstrual loss, or chronic illness can all lower hemoglobin levels.

Key Takeaways

• Common cause: Iron deficiency anemia.
• Symptoms: Tiredness, dizziness, shortness of breath.
• Treatment: Iron-rich foods or supplements.