Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the symptoms of Colorectal Cancer ?
    ### Response:
    Possible signs of colorectal cancer include: - a change in the frequency of bowel movements   - diarrhea, constipation, or feeling that the bowel does not empty completely   - either bright red or very dark blood in the stool a change in the frequency of bo
    