Anemia is a blood disorder. Anaemia is a disease in which the number of red blood cells or their oxygen-carrying capacity is insufficient to meet physiologic needs. Many types of anemia exist, such as iron-deficiency anemia, pernicious anemia, aplastic anemia, and hemolytic anemia (Watch Anaemia Video to learn more). The different types of anemia are linked to various diseases and conditions. It is of three types :
a). Microcytic anaemia
b). Pernicious anaemia
c). Megaloblastic anaemia
Causes of Anemia:
Anemia occurs if body makes too few red blood cells (RBCs), destroys too many RBCs, or loses too many RBCs. RBCs contain hemoglobin, a protein that carries oxygen throughout the body. When you don’t have enough RBCs or the amount of hemoglobin in blood is low, your body doesn’t get all the oxygen it needs.
In some types of anemia, such as aplastic anemia, the body also doesn’t have enough of other types of blood cells, such as white blood cells (WBCs) and platelets. WBCs help the body’s immune system fight infections. Platelets help in blood clot, which helps stop bleeding.
Many diseases, conditions, and other factors can cause anemia. For example, anemia may occur during pregnancy if the body can’t meet its increased need for RBCs. Certain autoimmune disorders and other conditions may cause your body to make proteins that destroy your RBCs, which can lead to anemia.
Preventing or Controlling Anemia:
Follow a Healthy Diet: Following a healthy diet ensures that you get enough of the nutrients that the body needs to make healthy blood cells. These nutrients include iron, vitamin B12, folate, and vitamin C. These nutrients are found in a variety of foods. Healthy eating also is good for overall health.
Useful for CBSE, ICSE, NCERT & International Students
Grade : 9
Subject : Biology
Lesson : Why Do We Fall Ill?
Topic: Anaemia Video
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