CAUSES AND SYMPTOMS OF CANCER

CAUSES

Cells are the building blocks of living things. Cancer grows out of normal cells in the body. Normal cells multiply when the body needs them, and die when the body doesn't need them. Cancer appears to occur when the growth of cells in the body is out of control and cells divide too quickly. It can also occur when cells “forget” how to die.
There are many different kinds of cancers. Cancer can develop in almost any organ or tissue, such as the lung, colon, breast, skin, bones, or nerve tissue.
There are many causes of cancers, including:
Benzene and other chemicals
Certain poisonous mushrooms and a type of poison that can grow on peanut plants (aflatoxins)
Certain viruses
Radiation
Sunlight
Tobacco

SYMPTOMS
Symptoms of cancer depend on the type and location of the tumor. For example, lung cancer can cause
COUGHING
or chest pain. Colon cancer often , constipation, and blood in the stool.
Some cancers may not have any symptoms at all. In certain cancers, such as gallbladder cancer, symptoms often do not start until the disease has reached an advanced stage.
The following symptoms can occur with most cancers:
Chills
Fatigue
Fever
Loss of appetite
Malaise
Night sweats
Weight loss