Is diarrhea an early symptom of rectal cancer?

Diarrhea is one of the early symptoms of rectal cancer, but not all diarrhea can be used as a criterion for judging rectal cancer. Rectal cancer is characterized by frequent diarrhea, and stool characteristics include mucus, watery stool, mucus and blood stool. Moreover, diarrhea is difficult to alleviate or reoccur after cure. Patients with the above conditions should go to the oncology department of the local hospital in time.