How Does
Cancer Start?
How
does cancer start? That’s the question in the mind of most people.
Cancer is a very dangerous and common condition. This illness is one of
the main causes of death around the world like heart disease, strokes
and diabetes. It can be hard to detect on the earlier stages which is
why many people do not know they have cancer until is too late.
The
condition usually takes many years to develop. That is the reason why
cancer is less common in children. The common areas affected by this
condition are the skin, lungs, colon and rectum. Breast cancer is quite
common in women and the prostate one in men. This illness starts with
one defective cell.
This abnormal cell starts multiplying
without stopping. Healthy cells divide way slower than a cancer cell.
The growing of a normal cell is also restricted by the contact with
another cell. Defective cells do not stop propagating once they are in
contact with other cells. The cancer cells easily manage to multiply
fast and occupy the surrounding tissue. They will use all the resources
it can find to continue the replicating process. Since these cells do
not tend to adhere to each other; they can manage to spread to other
tissues quickly.
Possible causes
So how does cancer start; the answer can be
found in the possible causes. Exposure to radiation, dangerous
chemicals, smoking, genetic mutations and some immune disorders can
damage cells creating cancer cells. Healthy or normal cells carry the
genes passed from the parents. These genes contain the DNA that will
provide every cell the instructions necessary to perform their tasks.
Main issue with cells
The
central problem occurs when the genes are altered by a chemical,
radiation or any other external agent. That will cause the genes to
start mutating and give erroneous information to the cell. That error
in the information will cause the cell to stop working or to work too
much. Cells can normally repair the errors that normally occur within
it but there are times that the errors might be overlooked by the
repairing mechanisms. Once this happens the mutated cells will start
replicating until they can form a tumor.
Cancer tumors can
be difficult to eliminate but there are several ways to deal with
them. Doctors generally use surgery to remove tumors and any
surrounding tissue to get rid of the cancer cells. Chemotherapy is the
treatment generally used to kill any remaining cancer cells that cannot
be removed with surgery or radiation.
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