How is cancer caused?

Question

Answer 1

Depends: While we are aware of some well established causes of cancer, like cigarettes, there is much that remains a mystery.

Answer 2

Genetic mutations: All cancers result from the accumulation of genetic mutations. The genes have a natural tendency to mutate, making life as we know it possible, and there's background radiation and chemicals that are part of nature and inescapable. Specific cancers have various hereditary (inherit a bad gene) and environmental (mutagen) causes; anything can promote by making mutated cells divide.

Answer 3

Multiple: Depending on the site there is a combination of enviromental, genetic and familial factors involved.

Answer 4

Genetics: Generally speaking cancers are caused by our cells not genetically reproducing correctly. The cells become abnormal and replicate at an increased speed.

Answer 5

Cancer: If we knew the answer, we wouldn't need doctors or medicine. However, that said, from what we know, cancer is caused by an unfortunate set of interactions between environmental factors and individual human genetics.

Answer 6

DNA abnormalities: Most cancers are the result of abnormal dna. This can lead to cell growth that is uncontrolled.

Answer 7

Many causes: Risk and contributory factors to causing cancers would include genetics/family history of it, excessive exposure to agents- chemicals, pollutants, radiation, biologic, sometimes, we don't exactly know. Normal cells would grow, divide and die at an even pace but cancer cells would grow and divide at an alarmingly fast pace that it crowd out and impair the growth of surrounding normal cells.

Answer 8

Too many culprits!: 5-10% of the populations have a high risk of hereditary cancer. In addition, our gene is subject to thousands of hits every day, in the air, in the car....food, drinks, smoking, sun exposure, viruses..... to mention a few ! I am surprised that we are still alive! Count your blessings!

Answer 9

Mutation: Cancer is an abnormal proliferation of cells. There are mutations in the dna that lead to the uncontrolled growth of the cells.There are certain environmental factors like tobacco smoke or radiation that are clear mutagens.The cells grow rapidly and lose their contact inhibition-thus their local spread and invasion. Cancers can also spread through the blood and set up at distant sites (metastases).

Answer 10

No: As far as i can tell there is no medication named cyclomethicone. The closest to this is simethicone, and it has never been shown to be carcinogenic.

Answer 11

You decide: Don't get your ears pierced until you're very sure it's what you want and know you're not a keloid former. The fact that many people get keloids from this gave rise to the myth that it "causes cancer" -- keloids aren't cancer but are troublesome.

Answer 12

Yes: Environmental exposure (as in hiroshima, chernobyl) can lead to blood and thyroid cancer decades later. Occasionally, radiation used for treatments or frequent scanning (x-rays, ct scans) can lead to cancer later in life.

Answer 13

Potentially, yes: Environmental radiation exposure may cause cancer. Radiation treatment for cancer may also lead to other cancers (called "second cancers") years after the treatment was received. While this is uncommon, it is one of the potential risks of receiving radiation treatments.

Answer 14

Genetics: Radiation can damage dna. Damaged dna can alter the genetics of any cell in the body and cause it to lose it's natural regulatory processes that make it a normal cell. Usually the body is good at repairing this damage itself, unless it gets overwhelmed. Then an unregulated cell is the building block for cancer, and when replicated it will eventually form a tumor.

How is cancer caused?

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