I hope you enjoy reading this blog post.

If you want to get access to our carefully selected top 3 researches click here.

  • Home
  • /
  • Blog
  • /
  • Understanding the Symptoms of Cancer Colon: A Comprehensive Guide
Comprehensive guide on recognizing colon cancer symptoms including abdominal discomfort and changes in bowel habits.

Colon cancer is a silent threat that often goes unnoticed until it reaches advanced stages. As the third most common type of cancer worldwide, it is essential to be aware of its symptoms and risk factors. By understanding the symptoms of cancer colon, we can take action to protect ourselves and our loved ones from this life-threatening disease. This comprehensive guide will help you recognize the symptoms, understand the risk factors, and learn about preventative measures and lifestyle changes that can reduce your chances of developing colon cancer.

Key Takeaways

  • Recognizing the symptoms of colon cancer is essential for successful treatment and improved survival rates.

  • Common signs include blood in stool, rectal bleeding, changes in bowel habits, abdominal discomfort and related symptoms.

  • Preventative measures such as regular screenings can help reduce risk of developing colon cancer.

Recognizing Colon Cancer Symptoms

Illustration of a human digestive system

Detecting colon cancer early significantly enhances the likelihood of successful treatment and increases survival rates. Symptoms such as blood in stool, rectal bleeding, and changes in bowel habits could be indicative of colon cancer, including stage III colon cancer, which involves the spread of cancer cells to nearby lymph nodes.

Consulting a healthcare professional when you experience any of these symptoms is vital because early detection can greatly impact the treatment outcomes of colon cancer, as emphasized by the National Cancer Institute.

Blood in Stool

The presence of blood in stool can be an alarming sign, but it’s not always indicative of colon cancer. It could be due to other conditions such as constipation, hemorrhoids, or inflammatory bowel disease. However, should you notice blood in your stool, a doctor should be consulted immediately for a precise diagnosis and appropriate treatment plan.

Blood in stool caused by colon cancer can be visible to the naked eye or detected using a fecal occult blood test. Occult blood, which is not visible to the naked eye, may be an early sign of colon cancer, especially in individuals with risk factors such as a family history of the disease, certain genetic mutations, or a history of inflammatory bowel disease.

Early detection of blood in the stool can help identify individuals at risk of developing colon cancer, allowing for timely intervention and treatment.

Rectal Bleeding

Rectal bleeding may be indicative of:

  • colon or rectal cancer

  • hemorrhoids

  • anal fissures

  • ulcers

  • inflammatory bowel disease

However, it’s also a symptom of other conditions. Rectal bleeding should not be disregarded, as it might indicate a grave underlying condition. Persistent bleeding should be evaluated by a healthcare professional.

Rectal bleeding caused by colon cancer and hemorrhoids may present similarly, but there are distinctions to be aware of. Hemorrhoids are a common cause of rectal bleeding, while colon cancer is less common but more serious. Rectal bleeding from colon cancer is typically continuous and may be accompanied by other signs like abdominal pain and changes in bowel habits.

Changes in Bowel Habits

New-onset constipation or diarrhea, changes in the frequency or size of bowel movements, and narrow stool can be indicators of colon cancer. These changes in bowel habits may be due to the tumor in the colon impeding the normal flow of stool or causing inflammation in the colon. Should these symptoms persist, consult a healthcare professional as they may indicate colon cancer or other conditions such as ulcerative colitis.

Typical bowel irregularities can be caused by factors such as dietary changes, stress, or medication. Conversely, bowel irregularities caused by colon cancer may persist and worsen over time. These may include persistent changes in bowel habits, such as chronic diarrhea or constipation, stool narrowing, or variations in the shape or consistency of the stool. Other symptoms accompanying bowel irregularities caused by colon cancer include fatigue, bloody stool, and unexplained weight loss. Persistent or alarming changes in bowel habits warrant a consultation with a healthcare professional, as they could also be indicative of irritable bowel syndrome.

Abdominal Discomfort and Related Symptoms

Photo of a person experiencing abdominal discomfort

Abdominal pain, bloating, and distention are other symptoms of colon cancer that should not be overlooked. These symptoms can be easily mistaken for common digestive issues or other conditions, If they persist, consulting a doctor to ascertain the cause is necessary.

Abdominal Pain

Persistent abdominal pain can be a symptom of colon cancer, and it’s typically described as an intermittent crampy feeling in the abdomen. This pain may be due to the growth of tumors or colorectal polyps in the colon. If you experience ongoing abdominal pain, it’s important to seek medical attention.

Abdominal pain associated with colon cancer may be accompanied by other discomforts such as cramps, gas, or a feeling of incomplete bowel movement. The location of the pain does not necessarily indicate the location of colon cancer, but it can be a symptom of the disease. Persistent abdominal pain warrants a consultation with a healthcare professional.

Bloating and Distention

Bloating and distention can be symptoms of colon cancer but may also be caused by other conditions. Bloating associated with colon cancer may be accompanied by other symptoms like abdominal pain, weight loss, and changes in bowel habits, whereas normal bloating is usually not accompanied by these additional symptoms.

Bloating and distention in colon cancer patients may be attributed to abdominal pain, constipation, and excessive gas. It’s not uncommon for these symptoms to occur in colon or rectal cancer, as tumor growth and obstruction in the colon can cause these issues. If you experience persistent bloating and distention, it’s essential to consult a doctor to ascertain the cause.

Nausea, Vomiting, and Bowel Obstruction

Illustration of a human digestive system with bowel obstruction

Nausea and vomiting can be symptoms of colon cancer due to bowel obstruction. Bowel obstruction is a blockage in the bowel that impedes the passage of stool and is a frequent complication of advanced abdominal cancer, particularly colon cancer. If you experience nausea and vomiting, Seeking medical attention is important as these symptoms might indicate a severe underlying problem.

Chemotherapy, a common treatment for cancer, can also cause nausea and vomiting. Additionally, a tumor in the bowel can result in bowel obstruction, which may consequently lead to nausea and vomiting. Persistent nausea, signs of dehydration, or vomiting that lasts for more than 24 hours warrants a consultation with a healthcare professional.

Anemia and Fatigue

Anemia, characterized by fatigue, dizziness, and increased heart rate, can be a symptom of colon cancer due to intestinal bleeding. Blood loss from the tumor associated with colon cancer may lead to a decrease in red blood cell levels, which can cause anemia. If you are exhibiting symptoms of anemia, such as fatigue, dizziness, and increased heart rate, Consulting a medical professional is recommended.

It’s important to remember that not all instances of anemia are the result of colon cancer. Other causes of anemia include iron deficiency, vitamin B12 deficiency, and chronic kidney disease. However, if you experience persistent symptoms of anemia, Consulting a healthcare professional for an accurate diagnosis and evaluation is necessary.

Unexplained Weight Loss and Appetite Changes

Illustration of a person experiencing unexplained weight loss

Unexplained weight loss, loss of appetite, and weakness can be signs of colon cancer. It’s important to monitor your weight and appetite, as unintentional weight loss is common among colon cancer patients. If you experience unexplained weight loss or appetite changes, Seeking medical advice is necessary.

Colon cancer can lead to a decrease in appetite for several reasons, such as persistent diarrhea, stomach pain, and nausea. Additionally, the cancer itself and its progression can cause fatigue, low energy, and a lack of appetite. Experiencing any of these symptoms necessitates a consultation with a healthcare professional to determine the cause and receive suitable treatment.

Pelvic Pain and Advanced Colon Cancer

Pelvic pain is a rare symptom of colon cancer and may indicate the spread of the cancer. If you experience persistent pelvic pain, Consulting a doctor to determine the cause is important, as pelvic pain may suggest that cancer has spread to the pelvic area.

Common causes of pelvic pain associated with colon cancer include tumor growth resulting in obstruction of the colon, inflammation of the pelvic region, and potential metastasis to adjacent organs or tissues. Diagnosing pelvic pain in advanced colon cancer typically involves a combination of medical history, physical examination, imaging tests (such as CT scan or MRI), and biopsy of the affected area.

Treatment options for colon cancer treatment may include targeted therapy, chemotherapy regimens, palliative pelvic radiotherapy, and oral opioids for pain management.

Colon Cancer Risk Factors

Understanding the factors that increase the risk of developing colon cancer can help you take proactive steps to protect yourself and your loved ones. Genetic mutations, lifestyle choices, and environmental factors all play a role in increasing the risk of colon cancer. For instance, Lynch syndrome is an inherited disorder that is linked to an elevated risk of colorectal cancer.

Age, diet, physical activity, smoking, and alcohol use are all known to increase colon cancer risk. Being cognizant of these risk factors enables you to make mindful health choices and take measures to mitigate your risk of developing colon cancer.

Preventative Measures and Lifestyle Changes

Reducing your risk of colon cancer is possible through regular screenings, avoiding risk factors, and making healthy lifestyle changes. Adults aged 45 and older are recommended to receive a colon cancer screening to help prevent the possibility to develop colon cancer. A healthy lifestyle can contribute to reducing the risk of colon cancer and includes maintaining a healthy weight, consuming a diet rich in vegetables, fruits, and whole grains, engaging in regular physical activity, and limiting alcohol consumption.

Besides these preventative measures, being mindful of colon cancer symptoms and consulting a healthcare professional when experiencing any worrying signs is crucial. By taking these steps, you can improve your overall health and reduce your chances of developing colon cancer.


In conclusion, understanding the symptoms and risk factors of colon cancer is crucial for early detection and prevention. By recognizing the signs of colon cancer, seeking medical advice when necessary, and making lifestyle changes, you can take control of your health and reduce your risk of developing this life-threatening disease. Don’t wait until it’s too late – be proactive and take charge of your well-being today.

Frequently Asked Questions

What are the warning signs of colon cancer?

Colon cancer can cause persistent abdominal pain, rectal bleeding, anemia, sudden weight loss, and a change in bowel habits. These are all warning signs that require medical attention.

Can Stage 4 colon cancer have no symptoms?

Although stage 4 colon cancer can have symptoms such as loss of appetite, fatigue, and others depending on where the cancer has spread, it’s still possible to have no symptoms at all. Every patient’s experience with the condition is unique.

How survivable is colon cancer?

Colon cancer is highly survivable with a five-year relative survival rate of 64.4% and up to 90% when localized. Treatment options like surgery, chemotherapy, and radiation are available to treat early stage cancer for the best possible outcome.

What is the life expectancy of a person with colon cancer?

The life expectancy of a person with colon cancer varies depending on the stage and type of cancer, but overall five-year relative survival rates are 90% for localized cancer and 64.4% for all colorectal cancer patients. For distant cancers, the five-year relative survival rate is 13%.

What is the most common symptom of colon cancer?

The presence of blood in the stool, instances of rectal bleeding, and alterations in bowel patterns are the primary symptoms associated with colon cancer.

{"email":"Email address invalid","url":"Website address invalid","required":"Required field missing"}