How often does blood in the stool occur in patients with intestinal cancer?

There is no fixed answer to the question of how often blood in the stool occurs in patients with intestinal cancer, because the frequency of blood in the stool depends on many factors, including the malignancy of the intestinal cancer, the location of the tumor in the intestine, the depth of the tumor invasion into the intestine, whether it invades adjacent blood vessels, and the pressure on adjacent tumors during defecation. Generally, factors include the degree of malignancy and the frequency of blood in the stool, the location of the tumor and the frequency of blood in the stool, and the treatment and the frequency of blood in the stool. The specific analysis is as follows:

1. Malignancy and frequency of blood in stool: The more severe the malignancy of intestinal cancer, the larger the area of ​​intestinal mucosal erosion will be, and the more frequent the patient's blood in stool will be. Some patients with low rectal cancer may have blood in stool every day due to severe erosion, but the amount of bleeding may not be particularly large. If the malignancy of intestinal cancer is low, or the tumor does not directly invade the blood vessels, the frequency of blood in stool may be relatively low.

2. Tumor location and frequency of bloody stool: The location of the tumor in the intestine will also affect the frequency of bloody stool. For example, for patients with right colon cancer who are far away from the anus, since the stool stays in the intestine for a longer time, the blood may be mixed with the stool, and the naked eye may not be able to observe obvious bloody stool. For patients with rectal cancer or left colon cancer, since the stool stays in the intestine for a shorter time, the blood may be more easily discharged directly, so the frequency of bloody stool may be higher.

3. Treatment and frequency of blood in stool: For some colorectal cancer patients with blood in stool, the bleeding symptoms may stop or be alleviated significantly after anti-inflammatory treatment or chemotherapy. However, for some patients, due to some personal reasons, the hemostasis effect is poor after treatment, and the symptoms of blood in stool will continue.

There is no fixed pattern for how often blood in the stool occurs in patients with colorectal cancer. Some patients may have blood in the stool every day, while others may only have it once every few months. For patients with colorectal cancer, they should pay close attention to their physical condition. Once abnormal symptoms such as blood in the stool occur, they should seek medical attention and receive professional treatment in a timely manner.