How diarrhea is a cancer signal

Diarrhea stool with blood and accompanied by emaciation, fatigue may be a cancer signal. If the diarrhea time is relatively intestinal, medication can not be relieved and there is blood in the stool, but also accompanied by systemic symptoms, such as fatigue, emaciation, or even anemia, especially in the elderly, it is necessary to cause attention. These are called alarm symptoms, may be a precursor to cancer. A colonoscopy should be done when the patient has diarrhea, bloody stools, weight loss, fatigue, or anemia. only colonoscopy can help determine whether bowel cancer is present. Other methods may not be particularly effective.