What does left half colon cancer symptom have

summary

Some time ago, my friend told me that he had colon cancer, which is a bad news, because at the beginning, he didn't notice it. He just felt uncomfortable and went to the hospital for examination. As a result, he got colon cancer. Next, I will popularize the symptoms of left colon cancer.

What does left half colon cancer symptom have

First: as people's age increases, the incidence rate of colon cancer is also increasing. Colon cancer is a common digestive tract cancer. Most of the patients with colon cancer are middle-aged or above. The median age is 45 years old, and about 5% of the patients are under 30 years old.

Second: abdominal distension, discomfort and dyspepsia may occur at the earliest stage, and then there will be changes in defecation habits, such as increased frequency of defecation, diarrhea or constipation, and abdominal pain before defecation. Later, there will be mucinous stool or mucopurulent bloody stool.

Third, the lumen of the left colon is thin and the feces are dry and hard. Left colon cancer is usually infiltrative type, which is easy to cause annular stenosis, mainly manifested as acute and chronic intestinal obstruction. The mass is small in size, without ulceration, bleeding and toxin absorption. Anemia, emaciation, cachexia and other symptoms are rare, and it is difficult to touch the mass. Colon cancer often has organ metastasis, distant metastasis is mainly liver.

matters needing attention

There are many symptoms of left colon cancer, and more obvious. If colon cancer is not well controlled, it will also have metastasis. Lymph node metastasis generally spreads from near to far, and there are also cross metastasis not in order. The probability of lymph node metastasis is higher after the cancer invades the muscular layer of intestinal wall.