Cancer: Leukemia
Many people in the world get a terrible disease called Leukemia. Leukemia can happen to anyone at any age. Leukemia is one of the most malignant (can come back again and again) growth of leukocytes (white blood cells).
Leukemia starts in the bone marrow, the soft center pat of various bones. There are four different types of leukemia. The four types of leukemia are: acute lymphocytic leukemia (ALL), acute myelogenous leukemia (AML), chronic lymphocytic leukemia (CLL) and chronic myelogenous leukemia (CML).
The symptoms of Leukemia (ALL) are an abnormal increase of white blood cells in the blood and tissues, bone pain in all the body, and some fever. ALL has many of the same symptoms as other types of leukemia. Also, an enlarged spleen or liver, or a feeling of abdominal fullness is felt.
The exact cause of Leukemia is unknown. But, doctors say that there are some factors that produce Leukemia. For example, iron deficiency or anemia can be a factor. Many people, including children die from Leukemia every year in many countries. 
The only solution for this disease is to visit the doctor regularly and try to detect the early stages of Leukemia. A person must begin treatment right away. This includes taking medication exactly how the doctor ordered. Also, making time to enjoy family and making those with Leukemia happy also helps. It is important that people with Leukemia do not feel alone.