What are the early symptoms of colon cancer?

What are the early symptoms of colorectal cancer? I believe many patients have this question. Colorectal cancer includes colon cancer and rectal cancer. It is a cancer with hidden early symptoms and is easily confused with many diseases. Colorectal cancer grows slowly and is confined to a local area for a long time. Early detection can be cured by surgery. Therefore, it is very important to understand the early manifestations. Let us learn about the early symptoms of colorectal cancer .

1. Blood in the stool: Early lesions of colorectal cancer are limited to the mucosa, and may be asymptomatic or only cause changes in bowel habits. When the tumor grows to a certain extent, blood in the stool may appear, and the blood is mostly light and dark, adhering to the surface of the stool. Red blood cells can be found in stool microscopy, and the fecal occult blood test is positive. For patients with bloody stools or persistent occult blood in the stool, the possibility of colorectal tumors should be considered first, and further related examinations should be performed.

2. Mucus and bloody stools: When the tumor ruptures, the stool often contains bright red or dark red blood and mucus, and the stool and blood are mixed. This is one of the early symptoms of intestinal cancer.

3. Changes in bowel habits: The frequency of bowel movements changes from once a day to two or three times a day, and there is a feeling of incomplete bowel movement after each bowel movement.

4. Alternating diarrhea or constipation: If there are symptoms such as alternating diarrhea and constipation, it may be because the growth of the tumor has affected the normal physiological function of the intestines, and the possibility of cancer should be considered.

5. Abdominal pain and bloating: Colorectal cancer patients will experience abdominal bloating and pain due to intestinal obstruction, among which the incidence of abdominal pain is higher than that of bloating. The pain is mostly in the middle and lower abdomen, with varying degrees of severity, mostly dull pain or distending pain, which is also an early symptom of colorectal cancer.

6. Anemia and weight loss: As the disease progresses, patients may develop chronic wasting symptoms, such as anemia, weight loss, fatigue, fever, and even cachexia, often accompanied by fatigue and unexplained weight loss, which is related to blood in the stool, insufficient intake, and excessive consumption. This is also a relatively obvious early symptom of colorectal cancer.

The above is an introduction to the early symptoms of colorectal cancer. I hope the above content can be helpful to you. If you have any questions about colorectal cancer, you can contact our online experts and they will give you detailed explanations.

For more information, please visit the colorectal cancer special page at http://www..com.cn/zhongliu/ca/ or seek free consultation from an expert, who will provide a detailed answer based on the patient's specific situation.