Cancer is one of colon cancer, is a subtle early symptoms of cancer, compared easily with a variety of diseases, muddy, slow cancer growth, a longer period of time localized, early detection can be radical surgery. Data show that about three Zhisi Cheng of colorectal cancer patients because of the negligence of doctors and patients themselves have been misdiagnosed. Cancer incidence and major departments decreased year by year the contrary, the incidence of colorectal cancer in the world is to increase the average annual rate of 2%, while Shanghai's survey shows that the growth rate of colorectal cancer incidence rate is twice the level of the world even, to average 4%. After doctors concluded a large number of common clinical observation of early symptoms of colorectal cancer are as follows:
Blood in the stool: early lesions limited to the mucosa of colon cancer can be asymptomatic, or only a change in bowel habits. When the tumor grows to a certain extent, can be thrown in the stool, dark color and more light, surface adhesion in stool. Stool examination can be found in red blood cells, fecal occult blood test was positive. Continued to have bloody stool or fecal occult blood positive patients, should first take into account the possibility of colorectal cancer and should be checked for further relevant;
Common early symptoms of cancer have mucus and pus and blood: tumor rupture, often with bright red or dark red stool blood and mucus, and fecal blood mixed;
Change in bowel habits: stool frequency from the original into two or three times a day, a stool after each stool different feeling;
Diarrhea or constipation alternating: if thrown alternating diarrhea and constipation and other symptoms may be due to the growth of cancer affecting the normal function of the intestinal tract, cancer should be considered possible;
Common early symptoms of abdominal pain and bloating cancer: colorectal cancer patients due to intestinal congestion will be bloating, abdominal pain, abdominal pain, which compared the incidence of the high incidence of abdominal distention. More pain and sadness in the lower abdomen area, extent uneven, mostly for pain, or pain;
Common symptoms of anemia and weight loss in early rectal cancer: progress with the disease, the patient may arise from chronic wasting symptoms, such as anemia, weight loss, fatigue and fever, and even appearing cachexia, and often followed with unexplained fatigue and weight dips , and blood in the stool, and insufficient intake of excessive consumption related.
When the above should be considered when the performance of cancer may be best to do a colonoscopy, which is effective in early diagnosis of colorectal cancer means.