Bleeding causes to loss of red blood cells more quickly than they can be replaced.The body does not make enough red blood cells.Anemia occurs when blood does not have enough red blood cells. Causes of Anemia:Īnemia, like a fever, is a symptom that requires investigation to determine the underlying etiology. Thalassemias are the most common genetic blood diseases and are found in Southeast Asia and in areas where sickle cell disease is common. Sickle cell disease is common in regions of Africa, India, Saudi Arabia, and the Mediterranean basin.
According to ‘The Lancet’, anemia affects a quarter of the global population, including 293 million (47%) children younger than 5 and 468 million (30%) non-pregnant women. The prevalence of anemia among non-pregnant women in India is higher than that in other South Asian countries, a recent study published in the reputed medical journal ‘The Lancet’ has revealed. Mild iron deficiency anemia affects another 375 million. It is slightly more common in females (9.9%) than males (7.8%). Types of Anemia:Ī moderate degree of iron deficiency anemia affected approximately 610 million people worldwide or 8.8% of the population. This condition leads to fatigue and intolerance to cold, which is related to lack of oxygen needed for energy and heat production, and paleness which is due to low hemoglobin content. It can be temporary or long-term, and it can range from mild to severe. Loss of blood is the most common cause of anemia. It is characterized by insufficient erythrocytes or hemoglobin. There are many kinds of anemia, each with its cause. Red blood cells carry hemoglobin, an iron-rich protein that attaches to oxygen in the lungs and carries it to tissues throughout the body. The oxygen-carrying capacity of the blood is, therefore, decreased.
Pathophysiology of Iron Deficiency Anemia:.Pathophysiology of Different Types of Anemia:.