Symptoms of colorectal cancer on location of tumor in the bowel whether it has spread to in body elsewhere. Most of symptoms may also occur in the other diseases also; hence none of symptoms is mentioned here in diagnostic of the colorectal cancer. Signs and symptoms are divided into local matastatic and construction.

Local symptoms are likely if tumor is located closer to anus, there may be change in the bowl habit and feeling of incomplete defecation ad reduction in the diameter of stool, change in stool shape is characteristic of the rectal cancer.

Local effects of the colorectal cancer occur when disease had become advanced, large tumor is like noticed on feeling abdomen and it may also be noticed by doctor during physical examination.

Disease may invade in other organs, many cause of blood or air in urine, or sometimes vaginal discharge as well. If tumor has caused chronic bleeding, iron deficiencies of anemia may also occur, it may be experienced as palpitation and may noticed as pallor. Colorectal cancer may lead to weight loss, because of decreased appetite generally. Age is risk of developing colorectal cancer, most cases occur is due to age factor, age between 60 and 70, while cases before 50 years of age are unless and uncommon in history of colorectal cancer.