Brief Answer:
Symptoms of colorectal cancer are following

Detailed Answer:
Hi,
Thanks for writing in to us.

I have read your query in detail.
Please find my observations below.

1. There are no "systems" of colorectal cancer. I guess that you have resqested information on the "symptoms" of colorectal cancer.

2. The symptoms of colorectal cancer includes one or more of the following.

(i) Sudden change in bowel habits over few days to weeks. A patient who is having normal stools will experience constipation or diarrhea or change in consistency of stools which it not explained by any other medical condition.

(ii) Rectal bleeding, blood in stools or dark stools.

(iii) A feeling of incomplete bowel emptying after passing stools.

(iv) On-Off Pain in abdomen.

(v) Weight loss which cannot be explained and generalized tiredness.

3. Hope this answers your question. Please feel free to correct any oversight in my interpretation of your problems and discuss them in detail as per your requirements.

Hope your query is answered.
Do write back if you have any doubts.

Regards,

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