The large intestine includes rectum and colon. Colorectal cancer is a kind of cancer with high incidence, also known as colorectal cancer. The severity of colorectal cancer is different, and the symptoms are different. There may be no symptoms in the early stage. With the aggravation of the disease, symptoms such as abdominal pain and bloody stool may appear. In the late stage of colorectal cancer, purulent bloody stool may appear, and the body will be severely emaciated until death. The main symptoms of colorectal cancer are changes in stool, such as bloody stool, changes in stool characteristics, severe constipation or changes in defecation habits.

Got colorectal cancer, what will happen to feces?

People can't live without eating, drinking and sleeping, and when our excrement changes, it will also make some changes in our health. When the large intestine is sick, the main manifestation is the change of feces. Normal stool is yellow-green soft stool, once or twice a day, or once every other day. If there is a change under the stool, we should pay attention to the hygiene of the large intestine.

1, bloody stool

There should be no blood cells in the stool. In the early stage of colorectal cancer, the tumor surface may rupture or erode, leading to bleeding, and blood will be mixed with stool. The fecal occult blood test can be positive. When left colon and rectal cancer bleed, blood often adheres to the surface of stool, or only appears on toilet paper, which is easily confused with hemorrhoids and easily delays the illness.

2. The appearance of feces will change.

When rectal cancer occurs, it may lead to narrowing of the rectum. In this case, when the feces pass through the narrow rectum, the shape will change, such as thinning, flattening, grooves and so on. Therefore, when the shape of feces changes, we should be careful of rectal cancer, which may be an early signal of rectal cancer.

3. Severe constipation

As we all know, the cause of constipation is that feces stay in the large intestine for a long time, and water is reabsorbed, which leads to dry feces and is difficult to discharge. When colorectal cancer occurs, it may affect the passage of feces, causing feces to stay, making feces dry and defecating more difficult. Constipation has happened to most people, so it is rarely taken seriously.

4. Changes in defecation habits

Changes in defecation habits are also common manifestations of colorectal cancer. The time, nature and shape of defecation have changed differently, which is different from the past. It may also be characterized by alternating diarrhea and constipation, which may occur in the early stage of colorectal cancer.

How to prevent colorectal cancer?

The large intestine is a part of the human digestive system. For colorectal cancer, it is mainly to keep your mouth shut, eat less spicy and irritating food, eat less greasy food, don't overeat, eat less junk food, stay away from tobacco and drink less. In addition to mind your mouth, you should also mind your legs. Exercise is essential. Proper exercise can improve immunity. There is also the need for regular physical examination, especially for people with a family history of cancer, people over 40 who often drink alcohol, and people who have been exposed to carcinogens for a long time.