# Can anemia be dangerous if left untreated? Canonical page: https://clinicsjo.com/en/faq/is-anemia-dangerous-if-untreated Language: en Category: general Publisher: ClinicsJo Published: 2026-09-13T17:52:53.245Z Content updated: 2026-09-13T17:52:53.245Z Translation (ar): https://clinicsjo.com/ar/faq/is-anemia-dangerous-if-untreated Yes, anemia can be dangerous if left untreated, because it means the blood is not carrying enough oxygen to the rest of the body. This oxygen deficiency can lead to feelings of fatigue and weakness, and in severe cases, it may cause serious complications affecting the heart, brain, and other organs, especially if it is associated with chronic diseases. ## What happens when anemia is left untreated? When anemia is not treated, the tissues and organs in the body, such as the heart and brain, may not receive enough oxygen to function correctly. This can lead to the worsening of common anemia symptoms such as fatigue, dizziness, headaches, and shortness of breath [\[1\]](). In some types of anemia, such as anemia caused by chronic kidney disease, severe anemia can increase the risk of heart problems because the heart must pump harder to compensate for the lack of oxygen [\[2\]](). ## Complications of severe anemia The complications of anemia depend on its type and severity. For example, in anemia caused by inflammation or chronic diseases, which is the second most common type of anemia after iron deficiency anemia, the anemia is usually mild to moderate. However, if anemia becomes severe, the lack of oxygen in the blood can cause symptoms such as extreme fatigue or shortness of breath, and it may become life-threatening [\[3\]](). Other potential complications may include: - Heart problems: The heart may have to work harder to pump oxygen-rich blood, which can lead to heart enlargement or heart failure over time [\[2\]](). - Increased risk of stroke, especially in people with anemia and chronic kidney disease [\[2\]](). - Exacerbation of underlying health conditions: Untreated anemia can worsen the symptoms of chronic diseases that may be causing it, such as chronic kidney disease [\[2\]](). ## When should you seek emergency care? If you have symptoms of anemia and they worsen suddenly or become severe, it is important to seek immediate medical care. For example, if you feel chest pain that does not go away, have difficulty breathing, or experience severe shortness of breath, you must seek emergency medical help immediately [\[2\]](). These symptoms may indicate that your heart or lungs are not getting enough oxygen, which requires urgent intervention. ## Diagnosis and treatment Anemia is usually diagnosed through a physical examination and blood tests, such as a complete blood count (CBC), which measures the number of red blood cells and the level of hemoglobin [\[1\]](). Treatment depends on the type and cause of the anemia. Treatment may include iron or vitamin supplements (such as vitamin B12 or folate), medications that stimulate the bone marrow to produce more red blood cells, or, in some cases, blood transfusions [\[1\]](). It is essential to consult a doctor to identify the underlying cause of the anemia and receive appropriate treatment to avoid serious complications. To learn more about the different types of anemia, you can visit [Different Types of Anemia: Diagnosis and Treatment (Arabic)](). ## Medical references - [Anemia]() - [Anemia in Chronic Kidney Disease]() - [Anemia of Inflammation or Chronic Disease]() General health education; not a substitute for individualized clinical assessment. Citation URL: https://clinicsjo.com/en/faq/is-anemia-dangerous-if-untreated#answer