The causes and risk factors for cancer of the large intestine

The causes and risk factors for cancer of the large intestine
Many environmental and genetic factors may increase the risk of cancer of the large intestine, and the many diseases may increase the risk of cancer of the large intestine. The most important factors are:



    Age: cancer affects the large intestine older, especially after the age of fifty, it is rare to happen before that, except in certain cases where there are genetic diseases.
    Family history: wounded relatives in the family, cancer of the large intestine, especially first-degree relative (ie, parents, brothers and sisters), increases the risk of cancer of the large intestine. The injured a relative of the family cancer of the large intestine before the age of 55 than most of the risk of injury.
    Cancer of the large intestine in the past increases the likelihood of injury again.
    The presence of polyps (Polyps) in the intestine: polyps are benign tumors grow from mucosal tissue abnormally, and take the form of football and highlights within the intestinal cavity. Some polyps increase the likelihood of cancer of the large intestine if any, but it regard Bnoaha, number and size. It also found polyps in patients with cancer of the large intestine at diagnosis.
    Smoking.
    Nutrition: rich Baldehnaat, canned food and red meat increase the risk of cancer of the large intestine. While fruits and vegetables protect against cancer of the large intestine.
    Obesity.
    Lack of physical activity.
    Rays.
    
    Genetic diseases: there are genetic diseases lead to cancer of the large intestine, including:
Polyposis coli (FAP-Familial adenomatous polyposis), a hereditary disease that leads to the presence of hundreds and thousands of polyps in the colon, where patients develop cancer of the large intestine is always at the age of forty. In all cases there is a family history indicates the disease, so it is important to follow up on these cases since childhood and colectomy to avoid colon cancer.
Lynch syndrome (HNPCC / Lynch Syndrome): Another hereditary disease increases the risk of cancer of the large intestine. Although it is more common than polyposis coli, but it is still very rare among people. Cancer affects the large intestine Lynch syndrome patients after the age of fifty or smaller. In addition to cancer of the large intestine, the syndrome increases the risk of developing other types of cancer such as cancer of the uterus, ovary, kidney, and bladder

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What is cancer of the large intestine

The large intestine is the last part of the digestive system, and begins after the end of the small intestine and extending to the anus. Large intestine is located in the abdomen and take a square form as they surrounded the small intestine and be in the vicinity of the abdomen. Large intestine consists of several parts where the large intestine begins Cecum, which is the first part and is located in the right lower abdomen. From then ascending colon on the right side of the abdomen, and then transverse colon at the top of the abdomen and passes to the left hand of the abdomen to become the descending colon. Advanced descending colon, for up to the rectum , the last parts of the colon and related to the Anus.



Line the colon and rectum mucous membrane. There are several arteries irrigate the large intestine. Lymphatic vessels concentrated in the lymph nodes in the pelvis and abdomen around the large intestine.



Cancer of the large intestine is the third type of cancer in the world and affects the elderly, it also the third cause of death from cancer. May lead to symptoms of abdominal speech, bowel obstruction or blood in the stool and lead to complications if it has spread to neighboring organs. Cancer of the large intestine can spread to distant organs such as the liver. There are several possibilities for the treatment of cancer of the large intestine such as surgical treatment, radiotherapy and chemotherapy, and can cure cancer of the large intestine after treatment. Because cancer of the large intestine is a common condition, and can be treated so it is important to large intestine cancer screening and treatment in the early stages and cured.

Cancer affects the large intestine is about 5-6% of persons, any person out of every twenty. Cancer affects the large intestine elderly in most cases, after the age of fifty.

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