Recognizing Colorectal Cancer Symptoms

Medically Reviewed by Nelya Melnitchouk, MD, MSc
Written by Samantha PhuaFeb 9, 20242 min read
Abdominal Pain Colorectal Cancer Symptom

Source: Shutterstock.

Colorectal cancer is a significant health concern that affects many individuals worldwide. Understanding its symptoms is crucial for early detection and effective treatment. In this article, we delve into the detailed symptoms of colorectal cancer, providing you with the knowledge you need to stay informed and proactive about your health.

Common symptoms

Persistent changes in bowel habits: Noticeable alterations in your bowel movements, such as diarrhea, constipation, or a change in stool consistency, that persist for an extended period.

Blood in stool: Rectal bleeding or blood present in your stool, which could range from bright red to dark, tarry stools.

Abdominal discomfort: Persistent abdominal pain, cramps or bloating that doesn't alleviate with time.

Unexplained weight loss: Significant weight loss without an apparent cause, often accompanied by loss of appetite and fatigue.

Weakness and fatigue: Feeling consistently tired and weak, even after adequate rest and sleep.

Anemia: A decrease in red blood cell count due to chronic bleeding, resulting in fatigue, weakness, and pale skin. This is due to colorectal polyps and tumors having poorly formed blood vessels that are more fragile and easily broken by waste matter passing through the colon.

Colorectal Cancer Symptoms

If you experience a combination of these symptoms for extended periods, consult a healthcare provider promptly, as it may be signs of colorectal cancer or other gastrointestinal conditions.
Adapted from: Shutterstock.

Less common symptoms

Narrow stools: Bowel movements becoming narrower than usual, which might indicate a potential obstruction in the colon.

Unexplained gas and uncomfortable bowel sensations: Persistent gas, cramps or feelings of incomplete bowel movements.

Vomiting: Nausea and vomiting, especially if it's persistent and unrelated to other conditions.

What to do if you have symptoms

If you experience any of these symptoms, worrying that it may be colorectal cancer is understandable. However, it's important to note that these symptoms may also be caused by gastrointestinal conditions. These include hemorrhoids, irritable bowel syndrome (IBS) or inflammatory bowel diseases (IBD) such as Crohn’s disease or ulcerative colitis.

If you experience these symptoms for an extended period, especially if you're over 50 years old or have a family history of colorectal cancer, it's recommended to consult a healthcare professional promptly. Remember that early detection significantly improves treatment outcomes and increases the chances of a successful recovery.

Being informed about the symptoms of colorectal cancer empowers you to take control of your health. Regular screenings, healthy lifestyle choices, and prompt medical attention when necessary can make a substantial difference in your well-being. Prioritize taking care of yourself and don’t hesitate to seek medical attention if you experience anything out of the ordinary.

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This article has been medically reviewed and fact-checked to ensure our content is informed by the latest research in cancer, global and nationwide guidelines and clinical practice.

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