What causes cancer?
Tennessee Department of Health: Tennessee Cancer RegistryCancer is caused by external factors such as exposure to chemicals and viruses. It is also caused by internal factors such as hormones and inherited cancer genes. These factors may work together or in sequence to start or promote a cancer. Ten years to a lifetime may pass between exposure to these factors and detectable cancer.
Related QuestionsFAQ's ABOUT CANCER - DCHRCA number of agents have been implicated in causing cancer. A large proportion of cancers are caused by living habits and environmental carcinogens: Tobacco: causes cancer of the mouth, throat (pharynx), voicebox (larynx), food pipe (esophagus), lung, pancreas, kidney, urinary bladder, and uterine cervix. At least 90% of lung cancer deaths are due to smoking.Related Questions
QuestionsIt is rarely possible to find the cause of a cancer in an individual, but studies on groups of people with cancer have shown specific risk factors to be associated with specific cancers. This suggests that different types of cancer probably have different causes. These studies also indicate that cancer formation is a multi-step process, and that for most cancers the time from a cancer-causing exposure to a clinically diagnosable cancer averages about 20 years.Related Questions
What causes colon or rectal cancer?
USC Center for Colorectal and Pelvic Floor DisordersColorectal cancer is caused by genetic changes that occur in the cells lining the large intestine. These changes occur slowly over time, and usually form a polyp before a frank cancer develops. While we cannot yet change genes to prevent colon cancer, screening for colorectal cancer can detect earlier cancers or allow your doctor to remove polyps, so that they cannot become cancers.
Related QuestionsWhat causes breast cancer?
Breast Cancer FAQNo one yet knows what causes breast cancer, but medical research has generated a lot of knowledge about the disease. Researchers at the Comprehensive Cancer Center have made some important discoveries in the treatment and prevention of breast cancer, ranging from understanding more about the genetic aspects of cancer to developing a vaccine that may treat and prevent breast cancer. Read more about breakthroughs at The James.
Related QuestionsContact PageThere are many causes of cancer, and for some cancers there may be no known cause. Activities such as tobacco smoking and excessive alcohol consumption can increase the risk of developing cancers. Tobacco use is linked with increased risk of cancers of the mouth, throat, lungs, bladder, kidneys as well as other sites. Not everyone who smokes will develop a cancer, and not everyone who does not smoke or drink alcohol will be spared from developing a cancer.Related Questions
What causes colorectal cancer?
Cancer - Frequently Asked Questions about Colorectal CancerThe exact cause of most colorectal cancers is not yet known. About 75% of colorectal cancers occur in people with no known risk factors. There are some known factors that may increase a person's risk of developing colorectal cancer, which include: Genetic syndromes such as familial adenomatous polyposis (FAP) or hereditary nonpolyposis colon cancer (HNPCC). (Just 5% of colorectal cancers are linked to these genetic syndromes.)
Related QuestionsWhat causes childhood cancer?
FAQsLittle is really known about what causes each of the various types of childhood cancer. Research so far as not been able to tell us why certain children develop cancer and others don't. What is known is that chromosome disorders account for most leukemias. High levels of exposure to radiation, such as the use of X-rays during pregnancy have been linked with one or more childhood cancers. And children with Down Syndrome are known to be at higher risk of developing leukemia.
Related QuestionsWhat causes kidney cancer?
PROLEUKIN® (aldesleukin): FAQs About Kidney CancerAlthough the exact causes of kidney cancer have not been determined, certain risk factors exist that make a person more prone to the disease. These include smoking, Von Hippel-Lindau syndrome, obesity, hemodialysis, a family history of kidney cancer, and certain occupations/workplace conditions. Please see ( Facts About Kidney Cancer for more information.)
Related QuestionsWhat causes prostate cancer?
Northwest Hospital & Medical Center - Prostate Cancer Fr...this time, the cause of prostate cancer is unknown. However, certain factors such as age, race, diet, family history, and the environment may increase a man’s risk of developing the disease.
Related QuestionsWhat are the causes and risk factors for vulvar cancer?
Vulvar Cancer FAQIt is difficult to discover what causes cancer from one person to another, but researchers have found several factors that increase a woman’s likelihood of developing vulvar cancer. Some risk factors for vulvar cancer include: Age – Of women who develop vulvar cancer, three-fourths are over 50 and two-thirds are over 70.The average age at diagnosis is 65 years; however, vulvar carcinoma is becoming more common in women under 40.
Related QuestionsWhat causes bladder cancer?
Bladder Cancer, SVCMC; New York NYThe cause of bladder cancer is not known. However, it is 3 times more likely to develop in smokers than in nonsmokers, and experts believe that smoking causes 50% to 60% of bladder cancer in men and 25% of bladder cancer in women.1, 4 The most common symptoms of bladder cancer include blood in the urine, pain during urination, urinating small amounts frequently, or frequent urinary tract infections (UTIs), though these symptoms may also be caused by other urinary conditions.
Related QuestionsWhat causes cancer of the cervix?
NSW Cervical Screening Program - Women - Frequent QuestionsIt is not clear exactly what causes cancer of the cervix. Research has shown a link with sexual intercourse and with some forms of the human papillomavirus (HPV or wart virus). If you smoke you may increase your risk of cancer of the cervix. The risk of developing cancer of the cervix increases with age.
Related QuestionsWhat Causes Colon Cancer?
GENERATIONS :We don't know for certain what causes colon cancer. Majority (80%) of colon cancers are related to environmental causes particularly our diet. Some food may help protect us from colon cancer, while others may help it develop. There is growing evidence that a high fat and low fibre diet is related to colon cancer. On the other hand, eating plenty of fruits, vegetables and produce high in fibre (such as cereals, brown rice/bread) may help prevent colon cancer.
Related QuestionsWhat are the causes and risk factors for ovarian cancer?
Ovarian Cancer FAQIt is difficult to discover what actually causes cancer from one person to another, but researchers have discovered several factors that increase a woman’s likelihood of developing ovarian cancer.
Related QuestionsWhat causes esophageal cancer?
Health InformationNo one knows exactly what causes esophageal cancer. At the top of the esophagus is a muscle, called the sphincter, that releases to let food or liquid go through. The lower part of the esophagus is connected to the stomach. Another muscle is located at this connection that opens to allow the food to enter the stomach. This muscle also works to keep food and juices from the stomach from backing into the esophagus. When these juices do back up, reflux, commonly known as heartburn, occurs.
Related QuestionsWhat causes liver cancer?
Liver Tumor Study Group: Frequently Asked Questions - M. D. ...The exact cause of liver cancer is not known. Risk factors for primary liver cancer (hepatocellular carcinoma) include: In many patients, liver tumors result from the spread (metastasis) of another cancer to the liver through the bloodstream. Most commonly, cancer occurring in the colon, rectum, breast, or kidney may spread to the liver. In this instance, these tumors are the primary source of the liver cancer.
Related QuestionsAMC TrustThere is no easily definable cause for cancer. It is not caused by normal kinds of viral and other infections, though a certain type of Stomach cancer is associated with "Helicopylori" bacteria. It is certainly known today that constant and persistent itching, discomfort or lesions can become cancerous overtime.Related Questions
FAQ: Cancer - cancer - 04 September 2006 - New ScientistFor cells to turn cancerous, some of their genes must be damaged through mutation. People may inherit mutations that predispose them to cancer, but damage to genes happens during life too - when cells are exposed to carcinogens such as tobacco, for example. But cells do not easily turn cancerous: at least three "hits", or different types of damage or mutation, are usually needed. Three main gene groups are involved in changes that lead to cancer.Related Questions
Foundation For Advancement in Cancer ResearchThe main causes of cancer are a genetic predisposition to cancer and exposure to the triggers of cancer (i.e. exposure to excessive UV radiation like from the sun, exposure to carcinogenic materials such as petroleum by-products, cigarettes, heavy metals, radioactive chemicals or lead-based paint and bodily harm from poor lifestyle habits). The triggers of cancer all affect and can alter the DNA in cells and trigger them to replicate incorrectly.Related Questions
Treatment Frequently Asked QuestionsCancer can be caused by anything that damages the DNA in a cell. This includes certain chemicals, ionizing radiation, or some types of viruses. Naturally occurring mutations in the cell's chromosomes or aging of the cell may also lead to the development of a cancer. The process by which cancers may develop in a particular individual is not fully understood and appears to be quite complicated.Related Questions
Frequently Asked Questions about Cancer in GeneralThere are basically two types of factors that contribute to the cause of cancer. One is a tendency or predisposition to develop cancer; the other is exposure to the triggers that start it off (such as cigarettes, sun exposure, liver damage, and so on).Related Questions
