Early Warning Signs of Colon Cancer: What You Should Never Ignore

Colon cancer, or colorectal cancer, typically begins silently, with symptoms that can be easily overlooked or diagnosed as something less serious. However, being present with your body and noting early warning signs can give you time to get diagnosed and treated. This blog will discuss some of the more significant risks and those that should raise alarm bells, highlighting the benefits of awareness that should never be ignored, and when to consult a healthcare professional.

What Is Colon Cancer? 

Colon cancer begins in the colon or rectum, which is part of the large intestine. In most cases, colon cancer begins as small, non-cancerous clumps of cells, known as polyps. A small number of these polyps may become colon cancer over time. Early colon cancer may not present with any significant symptoms, and that is why regular screening is so important. Afterwards, as the tumour progresses, some signs can let the patient know that something may be going wrong. Recognising the signs and symptoms is crucial for the early detection of colon cancer.

Why Is It Important to Recognise Symptoms Early? 

The earlier colon cancer is diagnosed, the better your chances of being cured and returning to good health. Most early-stage colon cancer can be successfully treated with surgery and other treatments. Later stages may require more aggressive treatment and even have less favourable outcomes. Acting when there are unusual or persistent symptoms could make the difference between life and death.

Typical Early Warning Signs You Should Not Ignore
Although the symptoms of colon cancer can present differently depending on the size and location of the tumor, several warning signs are commonly associated with colon cancer. Here is a list of the significant symptoms that you should consider:

1. Changes in Bowel Habits: One of the first symptoms of colon cancer is changes to bowel habits. Changes to bowel habits may include:

• Diarrhea or constipation that lasts for more than a few days.
• A sense of incomplete emptying of the bowel after a bowel movement.
• Stools that are thinner than usual.

Occasional issues can be typical, but persistent changes in bowel habits can represent a more serious underlying issue.

2. Blood in Stool or Rectal Bleeding: Blood in your stool is often one of the first noticeable symptoms related to colon cancer. Blood can appear bright red or dark, and make the stool appear black and tarry. Rectal bleeding can occur independently. While hemorrhoids may cause some of the same symptoms, if you experience persistent or unexplained bleeding, you should have it checked out by your doctor.

3. Abdominal Discomfort: Chronic abdominal pain or cramping can also be a warning sign. Discomfort can be vague or sharp and can be intermittent. Gas pain, bloating, or fullness can also be part of this scenario. While these types of symptoms may seem innocuous, medical attention is required if they continue.

4. Unexplained Weight Loss: At any age, losing weight without trying can be troubling and may point to an underlying issue, specifically, a cancer such as colon cancer. In colon cancer, repeatedly losing weight as a non-tobacco user can happen because the body's energy is being utilised to fuel the tumor, or how the tumor affects digestive absorption. If you notice that you have lost weight without an apparent cause, such as changes in diet, exercise, or other known life events, it is worth investigating.

5. Fatigue and Weakness: Colon cancer can lead to blood loss over time, and chronic blood loss can lead to an individual developing iron-deficiency anemia. Symptoms of anemia may include feeling lethargic, weak, or unable to catch your breath, and these symptoms may occur with only light activity. Chronic fatigue is sometimes overlooked, but it can be a strong indication that something is amiss.

6. A Constant Desire to Have a Bowel Movement: Also termed tenesmus, this symptom includes the sensation of needing to pass a stool, even though the bowel is empty. A tumor in the rectum or lower colon may create this feeling. If the sensation persists, it could be more than just a temporary digestive issue.

Risk Factors

While symptoms are significant early warning signs, their impact often depends on whether risk factors are present. Risk factors for developing colorectal cancer may include:

• Age: Individuals over age 50 have a greater risk of developing colon cancer. The percentage of people under age 50 developing colon cancer is rising.
• Family history: If at least one of your immediate family members had colorectal cancer or colon polyps, your risk increases.
• Personal medical history: If you have inflammatory bowel diseases or previously had colon polyps, you may also have a greater chance.
• Diet: A diet low in fibre and high in red or processed meats has a greater chance of increasing your risk.
• Lifestyle: Lethargy, obesity, smoking, or excessive alcohol consumption also contribute to your chances.

If you have one or more of these risk factors and experience any of these symptoms, it becomes more important to contact a medical professional quickly.

When to See a Doctor 

Although not every symptom related to the gastrointestinal tract translates to cancer, anytime you encounter the following symptoms, you should schedule a visit to your healthcare provider: 

• Blood in the stool (with or without pain). 
• Change in bowel habits that persists. 
• Unexplained weight loss. 
• Chronic fatigue or anemia. 
• Abdominal discomfort that doesn't go away. 

There may also be several diagnostic tests that a doctor may perform (such as a colonoscopy, stool test, or imaging) based on symptoms, additional problems, and medical history. Early intervention through diagnostics can facilitate early treatments and therapeutic options.   

What Makes Symptoms Difficult to Notice?  

Symptoms of colon cancer can mimic symptoms of common gastrointestinal problems, including but not limited to irritable bowel syndrome, hemorrhoids, and infections. These overlaps in symptom patterns often contribute to delayed primary or appropriate diagnosis, especially in younger adults who may not have clinical significance or are not typically at-risk persons.  Increasing awareness of the basic warning signs may empower individuals to manage their health better. 

Importance of Screening 

In addition to symptomatic diagnosis, screening is crucial even when individuals are completely asymptomatic, because it allows the early diagnosis of colon cancer. There are multiple potential screening options, including colonoscopy, stool testing and flexible sigmoidoscopy, which can all identify polyps before they mutate into cancer. Clinical guidelines typically recommend that screening start at 45-50 years old, but individuals may need to consider earlier screening based on their family history or personal risk factors. 

Preventive Tips

Knowing the symptoms of colon cancer is only part of the equation. The equally important part is taking preventive steps to lower your risk. Here are some things to consider:

• Eat Well: Take in lots of fruits, vegetables, whole grains and fiber.
• Exercise: Physical activity helps support general digestion and immune function.
• Avoid smoking and limit alcohol: They are linked to an increased risk of many different kinds of cancers.
• Get your annual health and well-care checkup: This will help catch early warning signs.
• Know your family history and share that information with your doctor so they can tailor a screening to your family history.

Conclusion

Colon cancer is a severe disease, but if found early, it is preventable and treatable. Recognising and responding to early warning signs can significantly impact your health. Pay attention to what is happening in your body, including but not limited to changes in your bowel habits, drastic fatigue, or sudden weight loss. The overwhelming possibility of colon cancer can be frightening. There are many forms of support systems and resources to seek out. Medical professionals, nutritionists, mental health counsellors, and patient advocacy communities can all assist. If you are a patient or have a loved one who is a patient, do not hesitate to seek support and direction.