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DESCRIPTION
The cancer is not only one illness but a group of any more than 200 different illnesses in which an abnormal growth of the cells takes place, until called tumors turn into textiles masses. There are two types of tumors: benign or not cancerous and malignant or cancerous.
The benign tumors have six principal characteristics:
- Only they grow up to a certain size.
- Normally they do not grow very rapidly.
- They do not destroy normal cells.
- They do not propagate to the textile that surrounds them.
- Normally they do not produce serious side effects.
- In general they grow in a tidy way.
The malignant tumors know for his aptitude to invade and to destroy textiles and organs, so much those who are close like those who are far from the original tumor. The death takes place when the spread of the cancer damages the textiles and the vital organs, in such a way that they cannot work.
The cells of the cancer attack the healthy textile and they never stop multiplying. The cancer has a different behavior in every person, according to his type. It can happen at any age, but it is more probable that it affects persons of advanced age; in general from 55 years. The cancer also can appear in children, and in fact, it is the second prime mover of death in children of ages understood between 1 and 15 years.
The cancer can be caused by external causes to the body, or by internal causes.
The external factors that can cause the cancer include being exposed to certain chemicals like the benzene and the asbestos (asbestos). The painters, the manufacturers of tires, the stills and the manufacturers of shoes, are exposed often to the benzene. The workpeople of mines, isolation and shipyards are exposed often to the asbestos. Other environmental factors that cause cancer include:
- Exhibition to environmental pollutant agents, like the gases of the leakage of the motorcar.
- Exhibition to the radiations of the sun.
- Exhibition at high x-rays levels.
- Exhibition to electromagnetic radiations.
- Diet with big fats quantity and small fibre.
- Tobacco consumption.
- I abuse the alcoholic beverages or certain drugs.
The internal factors that can cause cancer include the obesity, the infections caused by virus, like the hepatitis B chronic and a familiar record in which the cancer exists.
The possibilities of survival to the cancer depend on the place of the body in which the cancer is and of the used classes of treatment. There are five principal ways of treating the cancer:
- Surgery.
- Radiotherapy.
- Chemotherapy.
- Hormonal therapy.
- Biological therapy.
For the treatment of the cancer, the doctor can use only one method or a combination of several.
TO SEE ALSO
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