Most symptoms of colorectal cancer can also be indicative of less serious digestive conditions. It’s important to consult a healthcare professional, especially if symptoms persist for more than 4 weeks. In addition to this, many colorectal cancers won’t show any symptoms until they have progressed to later stages. Here are some of the most common symptoms of colorectal cancer:
- Changes in bowel habits.
- Diarrhea or constipation.
- Feeling of bowel fullness, even after a bowel movement.
- Blood in feces, which may make stools look black.
- Bright red blood coming from the rectum.
- Pain and bloating in the abdomen.
- Feeling of fullness in the abdomen, even after not eating for a while.
- Fatigue or tiredness.
- Unexplained weight loss.
- Lump in the abdomen or back passage.
- Unexplained iron deficiency in men, or in women after menopause.
Information taken from Medical News Today.