Intestinal cancer includes colon cancer and rectal cancer. It is a cancer with hidden early symptoms and is easily confused with many diseases. Intestinal cancer grows slowly and is localized for a long time. Early detection can Radical surgery. Statistics show that approximately 30 to 40% of bowel cancer patients are misdiagnosed due to negligence by doctors and patients themselves. Contrary to the decline in the incidence of most cancers year by year, the incidence of colorectal cancer in the world is rising at an average annual rate of 2. A survey in Shanghai shows that the growth rate of the incidence of colorectal cancer in my country is twice the world average, reaching an annual rate of 2. Average 4. Intestinal cancer has the following symptoms in its early stages.

Hematochezia: Early-stage intestinal cancer lesions are limited to the mucosa, and may be asymptomatic or only have changes in defecation habits. When the tumor grows to a certain extent, blood in the stool may appear. The blood may be dark in color and adhere to the surface of the stool. Stool microscopy reveals red blood cells and the fecal occult blood test is positive. For patients with bloody stools or persistent positive fecal occult blood, the possibility of colorectal tumors should first be considered, and further relevant examinations should be performed;

Mucoid stools and pus-bloody stools: When cancer ruptures, there is often a presence in the stool Bright red or dark red blood and mucus, and mixed feces and blood;

Change in defecation habits: the frequency of defecation changes from once a day to two or three times, and there is a feeling of endless defecation after each defecation;

Diarrhea or alternating constipation: If you have symptoms such as alternating diarrhea and constipation, it may be because the growth of cancer affects the normal physiological functions of the intestine, and the possibility of cancer should be considered;

Abdominal pain and bloating: Patients with intestinal cancer will experience abdominal distension and pain due to intestinal obstruction. The incidence of abdominal pain is higher than that of abdominal bloating. The pain is mostly in the middle and lower abdomen, with varying degrees of severity, mostly dull or distended pain;

Anemia and weight loss: As the disease progresses, patients may develop chronic wasting symptoms, such as anemia, weight loss, fatigue, and Fever and even cachexia are often accompanied by fatigue and unexplained sudden weight loss, and are associated with bloody stools, insufficient intake, and excessive consumption.

When you have the above symptoms, you should consider the possibility of cancer, and it is best to go for a colonoscopy, which is currently an effective method for early diagnosis of colorectal cancer