What is Leukemia?

What is Leukemia?

Leukemia is a type of cancer. Cancer is a group of more than 100 disease common can 2 things important. One is that certain cells in the body become abnormal. Thing is that the body continues to produce the number of lonnhung abnormal cells.

Leukemia is cancer of the blood cells. Each year, nearly 27,000 adults and 2,000 children in the United States know leukemia. To understand leukemia, it is helpful to know about normal blood cells and what happens to them when developing leukemia.

Normal blood cells.

Blood consists of fluid called plasma and three types of cells. Each type has its own function.

White blood cells help the body fight infections and other diseases.

Red caumang cells of oxygen from the lungs to the body tissues and take carbon dioxide from the tissues back to the lungs. Red blood cells red blood.

Platelet cells help create blood clots to control bleeding.

The blood cells are formed in the bone marrow, the soft spongy center of bones. The new blood cells (immature) are called immature cells. Few immature cells in the marrow to mature. Some to other parts of the body to mature.

Normally, blood cells are produced in the order, is controlled manner when the body needs them. This process keeps us healthy.


When leukemia develops, the body produces large numbers of abnormal blood cells. In most types of leukemia, the abnormal cells are white blood cells. Leukemia cells (usually look different from normal blood cells and they do not perform their functions properly).

Why is blood cancer?

Until now, we Tavan not know why cause leukemia. The researchers are trying to solve this problem. The study found that leukemia is more common in men than women and whites more often infected black people. However, we still can not explain why one person, and the other is not.

Through the large number of studies people on gender all over the wolrd, the researchers have found certain risk factors increase the risk of developing leukemia. For example, exposure to large amounts of high-energy radiation will increased leukemia risk bibenh. The radioactive material is usually produced after the explosion of the atomic bomb in Japan during War 2nd. In nuclear power plants, safety rules absolutely nhambao about workers and community tranhtiep contact with harmful radiation volume.

Research suggests that exposure of the electromagnetic field is a risk factor for leukemia (the electromagnetic field is a type low-energy radiation from power lines and electrical equipment). However, nhieunghien more research needed to prove this link.

Some genetic conditions can increase the risk for leukemia. It is Down syndrome. Children born with this syndrome have leukemia than other children.

The workers exposed to certain chemicals, in a high-risk period daise blood cancer. Benzene is one of the chemical. At the same time, some drugs used to treat other types of cancer may increase the risk for human leukemia nguoiphat development. However, this risk is very small compared to the benefits that chemotherapy brings.

Scientists have identified the virus is likely to increase the risk of leukemia. Scientists around the world continue to study other possible risk cuuvirutva for leukemia. By following the study because of blood cancer, which scientists hope to better understand the methods for the prevention and treatment of leukemia.

What type of blood cancer?

There are several types of leukemia. They are arranged in two ways. One way is by rapidly suphat how bad and how. Otherwise affected by the type of blood cells.

Leukemia either grant or chronic. In acute leukemia, the abnormal blood cells are immature cells preserved characteristics of immature and can not perform their body nangbinh often. The number of immature cells increased rapidly, and the disease became rapidly worse.

In chronic leukemia, a number of cells are present, but in general, these cells were more mature and able to perform some of their body nangbinh often. Leukemia can occur in both types of white blood cells: white blood cells or marrow cells. When leukemia affects lymphoid cells, it is called leukemia cells lympho.Khi marrow cells are affected, the disease is called leukemia or bone marrow marrow.

These are the most common types of leukemia:

Acute lymphoid leukemia line is the most common form of leukemia in children. Also cause disease in adults, especially at the age of 65 or older.

Line the most hetthuong marrow leukemia affects people older than 55. It usually occurs in younger people, but almost never causes disease in children.

Chronic myeloid leukemia mostly occurs in adults. Very few children develop this disease.

Hairy cell leukemia is a chronic leukemia's not normal. This category and other unusual types of leukemia are not discussed here. Cancer Information Service can provide information about them.

This disease also affects adults, especially those age 65 and older.

The symptoms of leukemia?

Leukemia cells is abnormal can not work normal blood cells do. We can not help the body fight infections. For this reason, leukemia nguoimac often prone to infection and fever.

At the same time, people with leukemia often have the number of red blood cells and platelets less than normal. As a result, there is not enough red blood cells to carry oxygen to all organs in the body. This condition is called anemia, patients may look pale and feel weak and met.Khi not have enough platelets, patients bleed, skin bruising.

Like all blood cells, leukemia cells travel throughout the body. Depending on the number of abnormal cells and where manhung cell concentration, the leukemia nhanbenh can have some symptoms.

In acute leukemia, symptoms appear rapidly and become worse. People with this disease often go to the doctor because they feel sick quickly. In chronic leukemia, symptoms may not appear for a long time. When these symptoms appear, at first gently, then gradually go bad. Doctors discovered leukemia chronic medical examination and routine blood tests, although before disease donguoi not have any symptoms.

  1. What are the common symptoms of leukemia:

  2. Fever, chills, and other flu-like symptoms.

  3. Weak and tired.

  4. Frequent infections.

  5. Poor eating and giamcan.

  6. Painful swelling of lymph nodes, liver, splenomegaly.

  7. Easy bruising and bleeding.

  8. Swelling and bleeding tooth.

  9. Sweating, especially at night.

  10. Bone and joint pain.

In acute leukemia, the abnormal cells may be concentrated in the brain or spinal cord (also called the central nervous system). The result can be headaches, vomiting, confusion, loss of muscle control, and seizures. In leukemia, the cells can also be set in the testicles and cause swelling. Some patients thandau in the eyes or on the skin. Leukemia also can affect the digestive tract, kidneys, lungs, or other parts of the body.

In chronic leukemia, the abnormal blood cells can slowly set in many parts of the body. Chronic leukemia may affect the skin, central nervous system, the digestive tract, kidney, and testis.

The basic treatment is treated with chemicals, but should be carefully monitored and, best hospital to be treated to prevent neurological complications during chemotherapy.

For lymphoid leukemia is divided into attack treatment, sustained by drugs key as vincristine, Presnisolon and maintain with methotrexate.
For white blood lymphocytes, induction therapy with Cystarabin and presnisolon. As for romance, depending on the type of leukemia that the treatment of acute leukemia.

Currently, there is some research to support leukemia therapy such as bone marrow transplantation. A number of studies on medicinal treatment to increase the ability to produce healthy blood cells. However, blood cancer is a common disease, prevention is difficult, so everyone need to take some measures to reduce the risk of lead to diseases such as protection environmental, anti-pollution radiation and toxic chemicals, good management of pesticides in agriculture; mothers over 40 childbearing age should avoid, avoid marriage with blood.