There are more than 200 types of cancer affecting different parts of our body. Unless you say about which cancer you are interested to know it is difficult to answer your question. The symptoms causing cancer is also similarly unexplainable unless the type of cancer or the part of the body affect. So make some specific question so that a correct answer can be given.
However I suggest you to understand - “WHAT IS CANCER”
Cancer develops when cells in a part of the body begin to grow out of control. Although there are many kinds of cancer, they all start because of out-of-control growth of abnormal cells. Normal body cells grow, divide, and die in an orderly fashion. During the early years of a person's life, normal cells divide more rapidly until the person becomes an adult. After that, cells in most parts of the body divide only to replace worn-out or dying cells and to repair injuries.
Because cancer cells continue to grow and divide, they are different from normal cells. Instead of dying, they outlive normal cells and continue to form new abnormal cells.
Cancer cells develop because of damage to Deoxyribo - nucleic acid (DNA). This substance is in every cell and directs all activities. Most of the time when DNA becomes damaged the body is able to repair it. In cancer cells, the damaged DNA is not repaired. People can inherit damaged DNA, which accounts for inherited cancers. More often, though, a person's DNA becomes damaged by exposure to something in the environment, like smoking.
Cancer usually forms as a tumor. Some cancers, like leukemia, do not form tumors. Instead, these cancer cells involve the blood and blood-forming organs and circulate through other tissues where they grow.
Often, cancer cells travel to other parts of the body where they begin to grow and replace normal tissue. This process is called metastasis. Regardless of where a cancer may spread, however, it is always named for the place it began. For instance, breast cancer that spreads to the liver is still called breast cancer, not liver cancer.
Not all tumors are cancerous. Benign (non-cancerous) tumors do not spread (metastasize) to other parts of the body and, with very rare exceptions, are not life threatening.
Different types of cancer can behave very differently. For example, lung cancer and breast cancer are very different diseases. They grow at different rates and respond to different treatments. That is why people with cancer need treatment that is aimed at their particular kind of cancer.
Cancer is the second leading cause of death in the world.. Today, millions of people are living with cancer or have had cancer. The risk of developing most types of cancer can be reduced by changes in a person's lifestyle, for example, by quitting smoking and eating a better diet. The sooner a cancer is found and treatment begins, the better are the chances for living for many years.-
2007-11-29 19:02:42
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answer #1
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answered by Jayaraman 7
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Cells duplicate in your body constantly. They say every seven years all of your cells duplicate and you have a new body. Cancer begins when a cell duplicates differently from the original cell and then that cell duplicates and grows. These rouge cells do not function properly and if organs are involved can lead to death. Billions of cells can make a lump and like in breast cancer can be detected early enough and the prognosis is pretty good for recovery. Others like Pancreatic cancer are almost undetectable until it is too late and usually a patient has about a six months left on average. I would imagine that exposure to toxic chemicals is a leading cause of cancer. Smoking, the Sun, and consuming unwholesome foods and drinks can contribute to it. Some ethnic groups seem to be develop cancer more than others, so it could be that too. I believe cancer is a disease of age. If you live a healthy lifestyle, it is less likely you will get cancer, but it is no guarantee. Look at Lance Armstrong, I bet he has less than seven percent body fat and he got it.
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2016-04-14 05:10:17
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answer #2
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answered by Anonymous
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2014-09-18 18:51:42
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answer #3
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answered by Anonymous
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What is cancer?
• Abnormal, uncontrolled cell growth
• In a healthy body, cells grow, die, and get replaced in a controlled way
• Damage in genetic material of a cell results in a cell that does not die
• Continues to multiply until a mass of cancer cells develops
• 1 in every 4 people die from cancer
2014-07-11 23:04:28
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answer #4
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answered by Anonymous
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2016-04-24 00:28:50
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answer #5
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answered by Anonymous
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To simplify - cancer is the result of defective cell reproduction. Defective cell reproduction can be cause by exposure to various chemicals (such as in smoke) and radiation (such as in the sunlight ) that damage the body's healthy cells.
Damage to the body's healthy cells causes cell reproduction (to replace the dead cells). However, in the case of cancer the new cells are defective, and do not stop their reproduction - resulting in large tumors.
Tumors in vital organs disrupt the normal body functions and eventually cause death.
2007-11-29 23:55:17
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answer #6
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answered by Ar S 2
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I agree with Alyssaquek.
2014-07-12 03:37:55
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answer #7
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answered by Anonymous
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