Colorectal cancer is an obvious symptom. As we all know, colorectal cancer is a malignant tumor. In the history of clinical medicine, the cure rate is very low. Any disease will have certain symptoms, and colorectal cancer is no exception. Colorectal cancer is an obvious symptom.

Colorectal cancer is the obvious symptom of 1 1. Colorectal cancer is a malignant tumor disease. Generally, patients with this disease will have obvious abdominal distension and abdominal pain, which is caused by problems in intestinal function. Moreover, if the disease is not well treated and controlled, it will become more and more serious, and patients will vomit, which is an obvious symptom of colorectal cancer.

2. Patients with colorectal cancer also have an obvious symptom, that is, bloody stool. When it is not serious, there will be bloodshot in the stool, but when the condition is serious, there will be dark red blood flowing out of the anus, which is the kind of blood secretion in the stool. The problem is very serious, which is also one of the early symptoms of colorectal cancer.

3, patients with colorectal cancer will have symptoms of dizziness and discomfort, that is, anemia. This is because it is always a symptom caused by bloody stool and long-term blood loss. Because there is a tumor in the large intestine, the intestine will narrow, and even ulcers and erosion will occur, which is also a symptom of colorectal cancer.

4. Patients with colorectal cancer will have severe diarrhea, that is, the habit of defecation has changed. There are more and more times to go to the toilet every day, and there are not many stools, even no stools, just a little mucus. The problem is very serious, so constipation and diarrhea are all symptoms of colorectal cancer.

Intestinal cancer. What is the reason?

1, dietary factors

Diet is one of the most common causes of this disease. If the patient's daily life is very irregular and he often has a full meal, it will bring great pressure to his stomach and may lead to the onset of colorectal cancer.

Moreover, a diet with high fat, high meat and low fiber is also very likely to cause colorectal cancer. High-fat food can easily lead to the increase of deoxycholic acid and lithocholic acid in gastrointestinal tract, both of which are carcinogenic.

2. Genetic factors

Cancer has obvious familial aggregation, so does intestinal cancer, so genetic factors cannot be ruled out.

Heredity is also a common inducing factor. Through the investigation, we can know that if there are patients with colorectal cancer in the family, the probability of other family members suffering from colorectal cancer will be much higher than that of ordinary people.

3. Polyps

Intestinal polyp is a common intestinal disease. When patients suffer from this disease, they must be actively treated, otherwise the disease will lead to diseases such as colorectal cancer.

4. Stimulation of chronic inflammation

The incidence of colorectal cancer in ulcerative colitis is five to ten times higher than that in normal people. Because the intestine is stimulated by chronic inflammation, it is very easy to cause colorectal cancer.

The obvious symptoms of colorectal cancer II. There are three "black hands" behind colorectal cancer.

In fact, there are many factors leading to colorectal cancer. But the following three are more important.

1, changes in eating habits

The main reasons for the increase in the incidence of colorectal cancer are the increase in fat intake and the decrease in cellulose diet.

That is to say, too much meat intake and too little vegetables and fruits intake lead to unbalanced nutrition.

2. Environmental pollution

The other is environmental problems. Environmental pollution is one of the causes of colorectal cancer, and smoking and second-hand smoke can easily lead to colorectal cancer.

3. Family inheritance

The probability of genetic factors leading to colorectal cancer is about 10%. Therefore, if you have familial intestinal diseases at home, you should pay close attention to your body. If you feel unwell, you should check it in time.

Early signal of colorectal cancer

Then, knowing the pathogenic factors of colorectal cancer, let's talk about the early symptoms of colorectal cancer.

The symptoms of colorectal cancer mainly depend on the growth site, onset time and tumor size.

We generally divide the incidence of colorectal cancer into three parts: right intestine, left intestine and rectum.

There is more water in the feces of the right half of the intestine, and the feces of the left half of the intestine begin to become solid, while the rectum is about 15 18cm, and the feces have formed on the rectum, which stimulates the peripheral nerves to defecate.

When the tumor of colorectal cancer is less than 0.5cm, it is almost difficult to see, so it is not easy to find, but with the growth of the tumor, the following symptoms will appear:

If it is right colon cancer, then the symptoms are abdominal pain, abdominal mass and anemia.

If it is left colon cancer, then what it shows is stool bleeding and intestinal obstruction.

If it is rectal cancer, the main manifestations are bloody stool and changes in defecation habits.

Therefore, if you have the above symptoms, you must go to the hospital for examination in time. Early detection of colorectal cancer, to avoid the development of advanced stage.

The obvious sign of intestinal cancer is 3 1, anemia.

Tumor growth needs a lot of blood supply. Therefore, with the gradual growth of the tumor, patients may have different degrees of anemia, but it is not that the more serious the anemia, the more advanced the patient. Some patients with right colon cancer often have unexplained anemia, fatigue and fatigue symptoms first.

2. Changes in defecation habits

Diarrhea, constipation or alternating diarrhea and constipation may occur in the early stage. With the continuous growth of tumor, it leads to intestinal stenosis and progressive constipation. In addition to frequent defecation, patients with rectal cancer have a feeling of endless defecation, which first appears after getting up in the morning, and then gradually increases, several times a day or more than 10 times, and even defecation several times at night.

3, abdominal pain, abdominal distension discomfort

The tumor continues to grow, and some patients will have abdominal pain and discomfort, often dull pain and discomfort, but no gastrointestinal symptoms. Because of the lack of specificity, it is often overlooked.

4, abdominal mass

Anatomically, the right colon has the characteristics of large cavity and thin wall. The contents of intestinal cavity are mostly liquid, and tumors can grow into intestinal cavity. In the middle and late stage, 60% ~ 70% patients can feel a hard lump in the right abdomen, which also suggests that right colon cancer may be a sign.

5, bloody stool

The main cause of hematochezia is the friction between feces and tumor surface. With the continuous growth of the tumor, the tumor appears necrosis, ulcer, increased secretion, increased stool blood volume and bright red blood. The blood stays in the intestine for a long time and is dark red, mixed with feces, and sometimes blood clots appear.