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Our body is made up of millions of tiny cells and is always producing or growing the new healthy cells. And of course, there are many kinds of cells in our body, such as the brain cells, skin cells, and hair cells. The blood in our body, in addition, contains cells which flow through and does the important things. However, when our body has cancer, it is due to the unhealthy cells and they grow much faster than the healthy ones.

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First and foremost, the term “Leukaemia” in general refers to the several different types of blood cancer. It is a group of cancers of the blood/bone marrow and is characterized by an abnormal proliferation (production by multiplication) of blood cells, usually the white blood ones (leukocytes). Besides, Leukaemia is a broad term covering a spectrum of diseases. Any of various types of acute or chronic neoplastic diseases of the bone marrow, in which unrestrained proliferation of white blood cells occurs, is usually accompanied by anaemia and thrombocytopenia.

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The blood cells made inside bones by something called bone marrow. This bone marrow, metaphorically speaking, is similar to a blood factory in the centre of the bone which has two main tasks. The first task is to form myeloid cells, and the second task is to form lymphocytes, which are a part of our immune system. The leukaemia is called lymphocytic or lymphoblastic if the cancerous change takes place in a type of marrow cell that forms lymphocytes, whereas the leukaemia is called myelogenous or myeloid if the cell change takes place in a type of marrow cell that normally goes on to form red cells, some sort of white cells and platelets.

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Whatever it is, a person with leukaemia in any cases has something wrong with their blood factory, in which their bone marrow is making unhealthy cells or so many unhealthy cells that there is less room for the healthy cells (the bone marrow is producing abnormal white blood cells, thus, they are known as leukaemia cells which practically lead to white blood cancers).