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  1. Anemia - Symptoms and causes - Mayo Clinic

    May 11, 2023 · Having cancer, kidney failure, diabetes or another chronic condition increases the risk of anemia of chronic disease. These conditions can lead to having too few red blood cells.

  2. Anemia: Symptoms, Causes & Treatment - Cleveland Clinic

    Apr 16, 2024 · What is anemia? Anemia is a blood disorder that happens when you don’t have enough red blood cells or your red blood cells don’t work as they should. Some types of anemia are …

  3. Anemia: Causes, Symptoms, Diagnosis, Treatments - WebMD

    Aug 4, 2025 · Anemia is a condition that develops when your blood lacks enough healthy red blood cells or hemoglobin. Learn more about anemia symptoms, causes, diagnosis, and treatment.

  4. Common and Rare Causes of Anemia - Healthline

    Aug 19, 2025 · Acute anemia often results from unexpected or rapid blood loss. Chronic forms of anemia may develop gradually and have multiple causes. The most common causes of chronic …

  5. What Causes a Person to Become Anemic? - MedicineNet

    There are three main reasons people become anemic: blood loss, a reduction in the body's ability to produce new red blood cells, or an illness that leads to increased destruction of red blood cells.

  6. Anemia - Causes and Risk Factors | NHLBI, NIH

    Dec 18, 2025 · Learn more about the causes of anemia from genetics to lifestyle habits.

  7. Anemia – Types, Symptoms, and Causes | Penn Medicine

    There are more than 400 types of anemia, each with different causes ranging from iron deficiency, blood loss, or damaged red blood cells to issues with red blood cell production. Some of the most common …

  8. Anemia: Symptoms, types, treatment, causes, diet, and more

    Jul 4, 2025 · Various types of anemia exist, including iron deficiency, vitamin B12 deficiency, aplastic, and hemolytic anemia, each with distinct causes and symptoms. Treatment for anemia varies …

  9. What Could Be Causing Your Anemia? 10 Possible Reasons

    Jul 16, 2024 · There are many types of anemia, but they can all be grouped by their three causes: blood loss, destruction of red blood cells, and faulty or decreased blood cells. Internal bleeding, a possible …

  10. Anemia - MedlinePlus

    Jun 3, 2025 · Hemoglobin is an iron-rich protein that gives the red color to blood. It carries oxygen from the lungs to the rest of the body. Anemia has three main causes: blood loss, lack of red blood cell …