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Should be actively precancerous lesion of colorectal cancer prevention and treatment of colorectal adenomatous polyps, especially in familial multiple polyposis coli, required early removal of lesions; and strongly combating schistosomiasis, dysentery, ulcerative colitis and other chronic intestinal inflammation. Note that the livelihood of the structure, to prevent high-fat living, eat more foods rich in fiber to keep the bowel open. High-risk groups on a regular basis than middle-aged fecal occult blood test, digital rectal examination, and colorectal screening endoscopy, the possibilities are aware of early rectal cancer, colon cancer and effective method.
The group of patients with colorectal cancer study proves, without effective treatment, the natural course of an average of 9.5 months. The prognosis of this disease originated in the early diagnosis and surgery is radical. As many early symptoms of colorectal cancer, most patients at diagnosis, have reached advanced cancer, colorectal cancer 5-year survival after radical resection only 50.21%. Reaction prognostic factors are:
(1) The level of cell differentiation: poorly differentiated by a poor prognosis.
(2) fall ill age: younger patients than in old age patients with poor prognosis.
(3) the depth of bowel wall invasion and metastasis of blood: the blood of early colorectal cancer with metastasis, poor prognosis.
(4) Other: extensive involvement of colon circumference, has intestinal
Should be


actively precancerous lesion of colorectal cancer prevention and treatment of colorectal adenomatous polyps, especially in familial multiple polyposis coli, required early removal of lesions; and strongly combating schistosomiasis, dysentery, ulcerative colitis and other chronic intestinal inflammation. Note that the livelihood of the structure, to prevent high-fat living, eat more foods rich in fiber to keep the bowel open. High-risk groups on a regular basis than middle-aged fecal occult blood test, digital rectal examination, and colorectal screening endoscopy, the possibilities are aware of early rectal cancer, colon cancer and effective method. National reports, the group of patients with colorectal cancer study proves, without effective treatment, the natural course of an average of 9.5 months. The prognosis of this disease originated in the early diagnosis and surgery is radical. Because many symptoms of early colorectal cancer, most patients at diagnosis, have reached the late stage colorectal cancer after 5-year survival rate of only 50.21%.
Reaction prognostic factors are:
(1) The level of cell differentiation: poorly differentiated by a poor prognosis.
(2) fall ill age: younger patients than in old age patients with poor prognosis.
(3) the depth of bowel wall invasion and metastasis of blood: the blood of early colorectal cancer with metastasis, poor prognosis.
(4) Other: extensive involvement of colon circumference, has intestinal
Obstruction, unless the 5-year survival generally half of those without obstruction. There intestinal bleeding, pierced, bleeding and other complications of peritonitis, the prognosis is poor.
Tag (Tag): rectal cancer treatment
Know the twenty colorectal cancer knowledgeColorectal cancer is large intestinal mucosa in the environmental or genetic factors such as under a variety of cancer onset of malignant lesions with poor prognosis, high mortality, is one of a rare malignant tumor.
In recent years, the incidence of colorectal cancer increased from time to time, while the cure rate has not clearly improve the situation, we thought to start the prevention and treatment of colorectal cancer is necessary to promote popular science. Knowledge of the relevant missions are listed here, hope that we grasp this disease prevention knowledge, and your doctor will make the task of colorectal cancer prevention and control, to improve the quality of well-being of the whole people to do whatever contribution.

1. Why do patients with colorectal cancer more and more? What is the reason?

There are two sets of data: one is the 5 provinces for 20 years the incidence of colorectal analogy, one is comparable to recent decades, census figures (plus two slides). From these two figures shows that the number of patients of colorectal cancer is indeed a clear tendency to increase. Experts in each country based on the findings, a large minority that perennial high-protein, high fat and low-fiber diet is conducive to the onset of the large intestine. Of course, does not mean that perennial high-protein, high fat and low-fiber diet will attack colon cancer. Other relevant factors, such as unhealed for many years suffering from ulcerative colitis; family, people suffering from colorectal cancer or polyps; cholecystectomy 10-20 years; in the lower abdomen after radiotherapy; chronic schistosomiasis infection and the incidence of colorectal cancer are also relevant.

2. Some people say "eat better, more susceptible to colorectal cancer." This correct?

Different countries and regions around the world the incidence of colorectal cancer can vary more than 10 times. Geographical and economic prosperity of the kingdom, such as North America, Western Europe, Australia and New Zealand, incidence rates of colorectal cancer than 25-35/10 million, nearly 20 years, originally high in Japan, with its rapid economic conduct, the colorectal cancer increased incidence has gone beyond, according to statistics, from 1969 to 1981, Japanese male colorectal cancer mortality rate increased by 44%, women increased by 40%. In contrast the incidence in India is only 1-3/10 million, some African country or even the incidence of colorectal cancer is less than 1 / 10 million. Nearly 30 years of statistics, the prevalence rate of colorectal cancer from the sixties <10/10 million, rose to the eighties 20/10 million or more, the Shanghai area of colorectal cancer mortality from 1972 to 1989 an increase of 75%, according to experts estimate, since 2000, colorectal cancer incidence higher than in the eighties 1.45 times. According to our southern region of China census data more than a dozen towns, cities, especially large cities, the incidence of colorectal cancer clearly higher than that of small towns and villages. In the cities, less physical activity was higher than the population incidence of physical activity and more people. From each country on the etiology of colorectal cancer study, the high fat, high protein diet, increased exercise, environmental pollution and bad habits are related to the pathogenesis of colorectal cancer, and the emergence of the social conditions they have some s and economic conduct, according to This, it was thought better to eat, the more prone to colon cancer. In fact, like colorectal cancer and other cancers, the onset of their environmental factors and genetic factors are the result of the interaction. On the diet itself, high-fat, high protein, low fiber diet can play in precipitating a role in colon cancer.

3. Since high-fat, high protein and less fiber (whole grains, vegetables and fruits are high fiber foods) diet was easy to make colorectal cancer, then what kind of diet is "well-being of recipes" nickname?

Recently, the U.S. Department of Agriculture recommends a "pyramid" type of food structure, they thought that the food structure is conducive to the prevention of colon cancer. Bottom from a variety of cereals, pasta, rice composition, the central tower of vegetables and fruits, the tower upper part of the meat, poultry, aquatic products, eggs, beans and dairy products, the spire is a high-fat foods. In fact, this structure is the food of Asia, especially China's daily diet. From this point of departure to prevent colorectal cancer, adhere to our traditional diet is "well-being of recipes." 1. Increased intake of fatty foods (including vegetable oil and vegetable oil), fish, poultry, lean meats, low fat dairy products, vegetable oil over the meat alternative to boiling, steaming food instead fried foods.

2. Increase in green leafy and root vegetables, fruit intake.

3. Eat more food starch and fiber.

4. Adhere to the proper weight.

5. Daily intake of less than 5 grams of salt.

6. Eat more fresh foods, eat less salt, smoked foods, do not eat moldy food.
4. People will not be easy to get colorectal cancer?

Is it plays little or constipation, then dried in terms of performance. In general, 2-3 days a bowel movement, such as the discharge can not be called smooth. Our feces contain a carcinogen, medically known as "secondary acid", it comes from the liver secretes bile. When we eat, especially when oil and more food to eat, the gallbladder, it shrinks, and expel stored bile to help digestion. Bacteria in the intestine into the lumen of the bile of these broken down into "secondary acid", and resides in the stool, who the intestine in the "secondary acid" temporary and mucosal exposure, it increased from time to time soothe the mucous membranes of the time. From this perspective, there will be conducive to the onset of colon cancer. Of course, the feces in addition to "secondary acid", there were many after being digested food particles and bacteria. Bacterial toxins and the occurrence of the toxic product of bacterial glycolysis, due to the long stay in the intestine, to soothe the intestinal mucosa and partial absorption of both water-soluble substances have a negative impact on the human body. Although we can not say that can induce cancer, but said that the onset of colorectal cancer have a role in fueling. To this end, to develop current bowel habits and prevent the attack, in the prevention of colorectal cancer also have a certain significance.

5. Cholecystectomy patients did not susceptible to colorectal cancer will be?

Storage of human gallbladder bile like a "reservoir", always a large part of liver bile is stored in here, we eat, and especially eating food containing fat and more after the gallbladder, the storage of bile into the intestine, promoting help digestion and absorption effect. Assuming the gallbladder was removed, the liver secretes bile no central storage, so they continue to keep the drainage of bile into the intestine. As previously mentioned, the bile into the intestine by intestinal bacteria break down, the occurrence of a carcinogenic effect of the "secondary acid", which act on the intestinal carcinogen throughout the year, there is soothing to the intestinal mucosa by cancer. Many research data, according to Western reports, the change process takes about cancer 10-15 years or more. But some researchers supportive, they observed a thousand made cholecystectomy and surgery is not done this and found two people suffering from colorectal cancer almost the same time. Thus far, still can not be done cholecystectomy that are more prone to colorectal cancer patients.

6. Chronic knot is not to develop into colorectal cancer?

People usually temporary, abdominal pain, chronic diseases collectively known as the knot. In fact, chronic abdominal pain, not necessarily "chronic knot", even if the doctor diagnosed "chronic knot" is not concerned with the large intestine. The real and colorectal cancer a chronic knot, medicine called "ulcerative colitis." The disease is relatively comparable in our small, its main symptoms are abdominal pain, blood in the stool or pus and blood, and might have a fever. Once the illness, can not recover more than a longer time delay. Colonoscopy can be found in the large intestine reflect a common ulcer and inflammation. The patient's regular treatment by a doctor, a large minority can be restored, very few serious condition, the ulcerative colitis patients unhealed for many years, there is more time than normal onset of colon cancer. According to statistics, the following two factors more intimate relationship with cancer:

The greater extent of disease, the higher the risk of cancer (prevalence 20 years later, the whole junction cancer patients with time to change twice as high than the left end, the average age of cancer 5-10 years earlier than the latter); suffering from ulcerative Results delay the healing of the longer, more time to cancer, illness of cancer after the first 8 years only 1% or less time, after which time each year to increase cancer 0. 5-1%, cancer 20 years time up to 5-10%. Therefore, more than 10 years unhealed entire colon ulcerative colitis should be considered as "pre-cancerous disease", to close follow-up and treatment.

7. Radiation therapy (commonly known as baking power) can cause it?

Many research data shows that female reproductive organs (ovaries, uterus) cancer after radiation therapy, suffer from the time clearly increased. Therefore, lower abdominal radiation therapy (grilled e) the history of women should be vigilant, once the rectal symptoms (blood in the stool, straining, change in bowel habits, etc.) will have to promptly stop the colonoscopy examination.

Caused by radiation does not have the familial aggregation, with another medicine called a "hereditary nonpolyposis colon cancer," the difference, which has highlighted the genetic characteristics. The patients suffering from colorectal cancer, may suffer simultaneously or female genital tumors. Because of this familial aggregation of the characteristics of the tumor, therefore, not only the implementation of their treatment, their relatives, should reflect on the treatment (to be mentioned later.)

8. Colorectal cancer will be inherited?

Superstition studies have shown that a large minority of human diseases have genetic factors. Except injury suits, almost all diseases are affected by both environmental and genetic factors, but some diseases are more affected by environmental factors, other diseases, the role of genetic factors by the more prominent and carry on. Colorectal cancer is no exception, there is a group of relatives of patients with colorectal cancer, he under certain conditions, such as prolonged consumption of high protein, high fat, low fiber (milled rice, flour and rice) and food, etc., have more time to attack colorectal cancers. Of course, the onset of colorectal cancer is not complex 1 1 = 2 (genetic high fat diet = colorectal cancer), but a multi-factor, multi-step, long process of accumulation of cancer-causing factors.

Is the basis of internal change, external factors are changing conditions. Lack of genetic background of colorectal cancer, even if the role of carcinogenic factors are not easy to get colon cancer. On the contrary, there is a family history of colorectal cancer, in a certain role of carcinogenic factors of colorectal cancer will be easy to get. Therefore, if the relatives, especially immediate family in colorectal cancer patients, family members must be current to accept each of the relevant examination. When necessary, but also to stop treatment to prevent the onset of colon cancer.

9. Why are some easy genetic colorectal cancer, colorectal cancer are easy to genetic?

As mentioned above, it should be said that all colorectal cancer are influenced by genetic factors, but they are not the same as the genetic strength. Hereditary colorectal cancer, there are two great efforts: the first medicine known as "familial adenomatous polyposis", the second called "hereditary nonpolyposis colorectal cancer." Both colorectal cancer in all colorectal cancer constitute a very small minority. The former is the average age is only 20 years old, can have hundreds or thousands of colorectal adenomas (from the mucosa out of a benign tumor on the length), 10 years after the emergence of these benign tumors, some of them at the end of cancer, as time goes on, people suffering from this disease will sooner or later, cancer, and many members of the family have the same disease. People suffering from this disease can suffer from bone tumor, and brain tumors. Once the disease, the patient and his immediate family needs to temporarily follow-up, make the necessary self-examination. The latter (hereditary non-polyposis colorectal cancer) and colorectal cancer than the average age of onset as early as 15-20 years, more than attack in the right colon cancer, and sometimes also in the large intestine has several cancer (called multiple primary cancer), surgery After easily relapse. In his family often have other cancers, such as ovarian cancer,, pancreatic cancer, and so on, so it was called "cancer family syndrome."

Above two hereditary colorectal cancer are very strong, if the family appears this tumor, the patient's immediate family members should all reflect on the hospital to stop, so early detection, early diagnosis and early treatment purposes.

10. Is not large intestine, "polyps" are cancerous?

First of all we have to figure out what is "polyps." The so-called "polyp" refers to the intestines (mucosal surface) to grow a variety of bumps. From a medical perspective, this sub-neoplastic polyps and non-neoplastic two. The former is called "adenoma" is a true benign tumor. After a polyp is not a tumor, including inflammatory polyps, hyperplastic polyps, which has nothing to do with the onset of cancer.

So, is not all adenomas will become cancers nickname? In fact, not all adenomas have become a cancer. Cancer is most likely to change the previously mentioned "familial adenomatous polyposis", which adenomas can have abdominal pain, blood in the stool can also be no symptoms until the cancer after the discovery. It was observed that the disease attacks more than 20 years old, 33-year-old symptoms, 39-year-old cancer, death, average age of only 42 years old. Studies have found that 80% of patients with a "congenital retinal pigment epithelial hyperplasia," as a sign of suspicion can reflect through the eye (fundus mirror reflection), found that people with the disease leads. Because of this familial clustering of disease, and thus assume that there is a family group diagnosed, other members of the relevant self-examination should be stopped (including fundus reflection.) In such "adenoma", some mergers there is skin, muscle, bone or brain tumors, and some mergers have dark skin and mucous membranes Ban (hand and lip pigment calm), some associated with nail atrophy, and skin black Ban. As long polyps in the intestines, without a special self-examination can not be confirmed, but there are features of the performance by reminding us go to the doctor.

In addition to the above spoken of the "familial adenomatous polyposis" other than the vast minority "adenoma" genetic can not clear. Medicine to this adenoma is called "sporadic adenomas," the size of adenoma and cancer that has some relevance, it has been Statistics 4570 adenomas, diameter less than 0. 9cm persons, cancer was 0.3 %; 1-1. 9cm persons, cancer was 3.6%; 2-2. 9% were for 6.8%; greater than 3cm, for 12.4%. Thus, the larger the tumor, the greater the opportunity to become cancer. In addition, self-examination through a microscope, if the adenoma is found, "villous adenoma", then change the timing of cancer is large (about 40%), if the "tubular adenoma" is changing the timing of cancer is small (5%) . Non-neoplastic polyps, especially the diameter of less than 0. 5cm of small polyps is simply not become cancer.

11. Schistosomiasis and colorectal cancer related?

It has been found that schistosomiasis endemic area of high incidence of colorectal cancer, and thus thought it was schistosome eggs deposited in the intestinal mucosa by mechanical or chemical carcinogenesis soothe mucous membranes caused by the department. It was also found that parts of the intestinal mucosa schistosome eggs are deposited early signs of cancer. According to the above findings, some people think that colon cancer can cause intestinal schistosomiasis. But there are many documented schistosomiasis endemic area of colorectal cancer incidence rate is not higher than other regions, found in parts of schistosome eggs deposited schistosome eggs deposited cancer and non-cancer sites, and there is no clear difference in attack rate. In short, it can cause bowel disease schistosomiasis colorectal cancer is not conclusive, but as a chronic intestinal soothing properties, active treatment of schistosomiasis on the prevention of colorectal cancer is still very necessary.

12. Colorectal cancer is colorectal cancer is not?

As always we are talking about colorectal cancer, including both benign and malignant. Benign tumor of the large intestine, also called "adenoma", is the large intestine glands (mucus secretion in the large intestine tissue) hyperplasia. This is a little risk to human benign tumors. However, it has further to cancer can, therefore, medically called as "pre-cancerous lesions." Once such a tumor, although it is not cancer, but also active treatment and re.

13. How do you know whether it had colorectal cancer?

The main symptoms of colorectal cancer is blood in the stool, followed by,, abdominal pain, weight

Down and so on. Once these symptoms should immediately go to hospital. According to statistics of international cases of colorectal cancer misdiagnosis rate as high as 41.5%. One important reason is that people lack understanding of the symptoms of colorectal cancer, when treatment delay. There are local cases because of lack of vigilance by medical admissions, neglect of careful self-examination, the blood in the stool mistaken for, the treatment of sepsis convenient for dysentery. Colorectal cancer patients was analyzed from the time of symptoms to diagnosis is: one month diagnosis in only 8-10%, 1-3 months, 25% ,3-6 months, 64.3%.

14. I heard very comfortable doing colonoscopy, colorectal cancer screening is colonoscopy need to do self-examination?

The vast minority in the census on people, as long as three stool tests done to see if there are blind fecal blood (medically called "Occult Blood"). Assuming that such "occult blood", you need to do soul-searching colonoscopy to further determine the cause of bleeding is cancer! Or, knot, polyps. Assuming no such "occult blood", you do not need to stop colonoscopy examination. Colonoscopy is a diagnostic tool not only reflect but also a colon cancer treatment and prevention. Compared with the risk of colorectal cancer, colonoscopy is clearly painful to reflect on the lack of micro-channels. Reflect on the colonoscopy itself, unless the patient's colon is too long or do not reflect those technologies

Skilled, in general will not have much pain.

15. Why do most of the patients to the hospital is in late stage patients? Early and late results of treatment of colorectal cancer What is the difference?

Because of early colorectal cancer often asymptomatic; symptoms in some patients (even doctors) thought it was wrong, diarrhea, and junction. Once the long treatment, suspected and cancer, the disease has come in late.

Early cancer surgery (even under the colonoscopy surgery) up to 90-95% survival rate after five years, while only 10% of advanced cancer

16. How to get early diagnosis talent?

Survey people's demand to stop well-being (physical well-being of reflection); of precancerous conditions necessary to stop treatment (such as adenomas, ulcerative colitis treatment); stop the immediate family members of colorectal cancer genetics monitoring, early diagnosis is made main ways.

17. How to stop colorectal cancer screening?

In fact, the census is the well-being reflect current post-illness. This reflection is not well-being of all people should reflect on different objects reflect different requirements. For example, asymptomatic patients over the age of 50 should be stopped once a year census, the census is to do first stool reflection (such as occult blood test), fecal occult blood test positive once, should immediately accept the colonoscopy examination. Who have a family history of colorectal cancer from 40 end of the year last census. Immediate family members who have more than one cancer, genetic testing should be relevant and necessary to stop the colonoscopy examination. Some families will stop from 20-25 years of age the self-examination.

18. What are the symptoms that can be suffering from colorectal cancer?

Rare symptoms of colorectal cancer blood in the stool, abdominal pain, abdominal mass, ascites and so on. Course does not have the above symptoms of colorectal cancer, because many other diseases may have these symptoms. However, in the event these conditions, in particular, who continue to have these expressions, the necessary treatment as soon as possible in order to understand the cause of delay in treatment. Would also like to stress that many of the early symptoms of colorectal cancer did not, do not to, no symptoms are not sick.

19. Can not prevent colorectal cancer? How to prevent?

Colorectal cancer is preventable. Prevention of colorectal cancer at least two ways: etiology of colorectal cancer prevention and early detection. Have said before, are now known to the bad eating habits and cancer of the benign diseases are easy to incidence of colorectal cancer causes. Establish good eating habits, aggressive treatment of cancerous diseases easily, with a family history of colorectal cancer who understand and accept genetic etiology prediction is prevention. Actively participate in current well-being of the body reflection (census), the early detection of colorectal cancer is an effective way.

20. How suffering from colorectal cancer should be treated?

The primary treatment of colorectal cancer is surgery. Because the vast minority of colorectal polyps, assuming that attack cancer at the top of polyps and early cancers, they can be removed under colonoscopy, laparotomy without resection of the colon. Suppose the roots of cancer onset in the polyps, ulcerative cancer may be suspected of having metastasis may be necessary to open surgery is removal of bowel cancer. Do we have to stop chemotherapy after surgery, depending on cancer metastasis, tumor differentiation level and the patient's integrated status. The choice of these methods by a doctor to master. The prevailing immunotherapy, traditional drug therapy can also be used as the supplement or adjuvant treatment, in the appropriate machine to help advance the treatment of colorectal cancer or increase the weak effect.


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