Causes and effects of cancer

Avoid excessive sun exposure. In most cases, using Causes and effects of cancer nutrition through tubes into the stomach or vein does not help change the weight loss. Cancer and cancer treatment may cause weight loss. Your habits Certain lifestyle choices are known to increase your risk of cancer.

Your doctor may devise a follow-up care plan for you after treatment. Your inherited gene mutation could make you more likely than other people to develop cancer when exposed to a certain cancer-causing substance. Theses free radicals damage cells and affect their ability to function normally.

Passive smoking Passive smoking, or the inhalation of secondhand tobacco smoke from other smokers sharing living or working quarters, is also an established risk factor for the development of lung cancer.

Cytogenetics and immunohistochemistry are other types of tissue tests. Cancers usually arise from an assemblage of mutations and epimutations that confer a selective advantage leading to clonal expansion see Field defects in progression to cancer.

Environmental Protection Agency estimates that one out of every 15 homes in the U. A mutation in a tumor suppressor gene allows cancer cells to continue growing and accumulating. Your family history Only a small portion of cancers are due to an inherited condition.

In order for a normal cell to transform into a cancer cell, the genes that regulate cell growth and differentiation must be altered. This plan may include periodic scans and exams in the months and years after your treatment, to look for cancer recurrence.

Cancer can press on nearby nerves and cause pain and loss of function of one part of your body. On the next page we look at the symptoms of cancer and how cancer is classified and diagnosed.

Cancer: What you need to know

Cancer often has the ability to spread throughout your body. Characteristic abilities developed by cancers are divided into categories, specifically evasion of apoptosis, self-sufficiency in growth signals, insensitivity to anti-growth signals, sustained angiogenesis, limitless replicative potential, metastasis, reprogramming of energy metabolism and evasion of immune destruction.

What Causes Cancer?

Regular exercise is linked to a lower risk of cancer. An invasive ductal carcinoma of the breast pale area at the center surrounded by spikes of whitish scar tissue and yellow fatty tissue An invasive colorectal carcinoma top center in a colectomy specimen A squamous-cell carcinoma the whitish tumor near the bronchi in a lung specimen A large invasive ductal carcinoma in a mastectomy specimen Prevention Main article: Pain can be caused by cancer or by cancer treatment, though not all cancer is painful.

However, such germline mutations which cause highly penetrant cancer syndromes are the cause of only about 1 percent of cancers. As with asbestos exposure, concomitant smoking greatly increases the risk of lung cancer with radon exposure.

Translocation occurs when two separate chromosomal regions become abnormally fused, often at a characteristic location.

Metastasis Metastasis is the spread of cancer to other locations in the body. On the final page we discuss treatments for cancer. Drink alcohol in moderation, if you choose to drink. Talk to your doctor about what types of cancer screening exams are best for you based on your risk factors.

Carcinogens Carcinogens are a class of substances that are directly responsible for damaging DNA, promoting or aiding cancer. Cancers derived from pluripotent cells, most often presenting in the testicle or the ovary seminoma and dysgerminomarespectively. Genes - the DNA type Cells can experience uncontrolled growth if there are mutations to DNA, and therefore, alterations to the genes involved in cell division.Cancer is a group of diseases involving abnormal cell growth with the potential to invade or spread to other parts of the body.

These contrast with benign tumors, which do not spread to other parts of the body. Possible signs and symptoms include a lump, abnormal bleeding, prolonged cough, unexplained weight loss and a change in bowel movements.

While these symptoms may indicate cancer, they. Cancer is a complex group of diseases with many possible causes.

In this section you can learn more about the known and possible causes of cancer, as well as general information about carcinogens and how genetics play a role in cancer. Causes of cancer.

Cancer is ultimately the result of cells that uncontrollably grow and do not die. Normal cells in the body follow an orderly path of growth, division, and death. Programmed cell. What causes lung cancer? Smoking The incidence of lung cancer is strongly correlated with cigarette smoking, with about 90% of lung cancers arising as a result of tobacco use.

The risk of lung. This therapy can also harm non-cancer cells resulting in side of the side effects include fibrosis, bowel damage  which may cause bleeding and diarrhea, infertility and memory loss.

Causes of Lung Cancer

Cancer can be surgically removed from the body. Causes. Cancer is caused by changes (mutations) to the DNA within cells. The DNA inside a cell is packaged into a large number of individual genes, each of which contains a set of instructions telling the cell what functions to perform, as well as how to grow and divide.

Causes and effects of cancer
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