Why does colon cancer occur? What are the early symptoms of colon cancer?

Cancer is a disease that everyone fears. The harm of cancer in life is enormous, so we must understand cancer. Among them, colorectal cancer is a common cancer. Today, let us take a look at the early symptoms of colorectal cancer, the causes of colorectal cancer, and how to treat colorectal cancer. I hope it will be helpful to everyone.

Early symptoms of bowel cancer

Any disease will have certain symptoms, and colon cancer is no exception. Today, let us take a look at the early symptoms of colon cancer.

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

2. Another obvious symptom of colorectal cancer patients is blood in the stool. When the condition is not serious, there may be blood in the stool, but when the condition is serious, dark red blood will flow out of the anus. The secretion of blood in the stool is a very serious problem. This 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 a symptom caused by long-term blood loss due to constant bleeding in the stool. Because tumors appear in the large intestine, the intestinal tract will be narrowed, and even ulcers and erosions may occur. These are also symptoms of colorectal cancer.

4. Patients with colorectal cancer may suffer from severe diarrhea, which means their bowel habits have changed. They go to the toilet more and more often every day, and their stools are not much, or even nonexistent, with only a little mucus. This is a very serious problem, so constipation and diarrhea are both symptoms of colorectal cancer.

What are the causes of bowel cancer?

Cancer cannot appear without reason, so what are the reasons for the occurrence of colon cancer?

1. Dietary factors

Diet is one of the most common causes of disease. If the patient has an irregular diet and often goes hungry or full, this will put a lot of pressure on the stomach and intestines, and may lead to the onset of colorectal cancer.

In addition, a high-fat, high-meat, and low-fiber diet is also very likely to cause colorectal cancer. High-fat foods can easily lead to an increase in deoxycholic acid and lithocholic acid in the stomach and intestines, both of which are carcinogenic.

2. Genetic factors

Cancer has obvious familial clustering, and this is also true for colorectal cancer, so genetic factors cannot be ruled out. Genetics is also a common predisposing factor. Through investigation, we know that if there is a colorectal cancer patient 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 polyps are an intestinal disease that we often encounter. When patients suffer from this disease, they must actively seek treatment, otherwise the condition will become serious and cause diseases such as colorectal cancer.

4. Stimulation of chronic inflammation

The incidence of colorectal cancer in people with ulcerative colitis is five to ten times higher than that in the normal population. Since the intestines are constantly stimulated by chronic inflammation, it is very easy to develop colorectal cancer.

Is bowel cancer contagious?

Colorectal cancer occurs mostly in people aged 40-50, with the median age being around 45. People under 40 account for about 1/3 of all cases, and people under 30 account for about 10%. The age of onset of colorectal cancer in my country is 10-15 years earlier than in foreign countries, with people under 30 accounting for 11%-13%, which is a major feature of colorectal cancer in my country. Like other malignant tumors, the cause of colorectal cancer is not yet clear, and may be related to the following factors.

1. Environmental factors: Among various environmental factors, diet is the most important. The incidence of colorectal cancer is positively correlated with the high fat consumption in food. In addition, it may also be related to the lack of trace elements and changes in living habits.

2. Genetic factors: There have been reports of "familial clustering of colorectal cancer" both at home and abroad. The rate of death from colorectal cancer in patients with family clustering of colorectal cancer is significantly higher than that of the general population.

3. Colon adenoma: The incidence of colon adenoma is quite similar to that of colorectal cancer. According to statistics, the incidence of colorectal cancer in patients with one adenoma is 5 times higher than that in patients without adenoma, and the incidence of colorectal cancer in patients with multiple adenomas is 1 times higher than that in patients with a single adenoma.

4. Chronic colon inflammation: The prevalence of intestinal cancer is positively correlated with the prevalence of schistosomiasis. It is generally believed that due to schistosomiasis, inflammatory changes in the intestines may lead to cancer in some cases. Other chronic inflammations of the intestines may also lead to cancer, such as ulcerative colitis, which has a 3%-5% chance of cancer.

For the treatment of colorectal cancer, we need to know more about the common knowledge of colorectal cancer. Now that we know the causes of colorectal cancer, in order to better treat colorectal cancer, we also need to know more about the early symptoms of colorectal cancer and try to detect the disease as soon as possible. So what are the early symptoms of colorectal cancer?

Main symptoms: changes in bowel habits and blood in stool. Most cases are characterized by an increase in the frequency of bowel movements, unformed or loose stools, and mild abdominal pain before defecation. Blood in stool is an important symptom, manifested as bright red or dark red stools, often accompanied by mucus.

Abdominal pain is also an early symptom, mostly in the middle and lower abdomen, the degree of pain is not serious, and it is often ignored as dull pain. As for abdominal distension, abdominal mass, anemia and intestinal obstruction, they are late symptoms of colorectal cancer.

In summary, I believe everyone should understand the answer to whether colorectal cancer is contagious. Everyone must pay attention to the early symptoms of colorectal cancer. Once discovered, do not be lucky and go to a regular hospital for relevant examinations to avoid the occurrence or deterioration of colorectal cancer.