Most people have heard of leukemia but still want to know, what is leukemia? The short answer is that it is a cancer of the blood cells. To understand leukemia, it’s important to have a basic understanding of the blood cells that leukemia affects.
Bone marrow is the soft material found inside the center of most of your bones. Most of your blood cells are actually developed from cells within your bone marrow known as stem cells.
The stem cells mature and develop into different kinds of blood cells. Each different kind of blood cell has a special job, and they are as follows:
• White blood cells, of which there are several types, help fight infection
• Red blood cells are the oxygen-carrying cells, delivering oxygen to all bodily tissues
• Platelets help to control bleeding by forming blood clots
As the body requires them, new blood cells are created from the stem cells. The new blood cells replace older ones that are damaged or dying.
In a person with leukemia, the bone marrow makes abnormal white blood cells. The abnormal cells are leukemia cells.
Leukemia cells differ from normal blood cells in that they do not die when they should. They can crowd out normal white blood cells, red blood cells, and platelets, making it difficult for normal blood cells to do their work properly.
Some of the signs of leukemia include easy bruising, weight loss, night sweats, and unexplained fevers. Other symptoms of leukemia are persistent fatigue or weakness, frequent infections, anemia, bone pain and tenderness. However, many individuals experience vague symptoms and aren’t sure they’re symptoms at all.
If there is any doubt in your mind, seeking medical attention is highly recommended. Symptoms and signs of leukemia can be, at times, overlooked because they may seem so innocuous. In fact, some people suffering with leukemia had at first mistaken their symptoms for flu or other common illnesses.
There are four main types of leukemia. These are acute lymphocytic leukemia (ALL), chronic lymphocytic leukemia (CLL), acute myelocytic leukemia (AML), and chronic myelocytic leukemia (CML).