Why Colorectal Cancer Awareness Matters

Colorectal cancer is the third most common cancer worldwide and one of the leading causes of cancer-related deaths. The good news? Early detection and lifestyle changes can significantly reduce risk and improve survival rates. 

Despite its prevalence, many people remain unaware of the early signs and symptoms of colorectal cancer often dismissing them as minor digestive issues. Recognising these warning signs and adopting preventative lifestyle habits could be lifesaving. 

In this post, we’ll explore: 

 Common symptoms of colorectal cancer and when to seek medical attention  Who is at risk and key screening recommendations  Evidence-based lifestyle strategies to reduce your risk 

If detected early, colorectal cancer has a 90% survival rate—which makes awareness and prevention crucial. 

Signs & Symptoms of Colorectal Cancer 

Colorectal cancer often develops silently, with no noticeable symptoms in its early stages. However, as the disease progresses, some key warning signs may appear. 

1. Changes in Bowel Habits 

 Persistent diarrhoea or constipation lasting more than a few days  Feeling like you need to empty your bowels, but not relieved after doing so  Unexplained narrowing of the stool (thin or ribbon-like stools) 

 When to Act: If your bowel habits change and persist for more than two weeks, consult a healthcare professional. 

2. Blood in the Stool (Rectal Bleeding) 

 Bright red or dark blood in stools  Black, tarry stools (a sign of internal bleeding) 

Blood in the stool can also be caused by haemorrhoids, anal fissures, or diverticulosis, but it should never be ignored. 

 When to Act: If you notice blood in your stool, even occasionally, seek medical advice immediately. 

3. Unexplained Weight Loss & Fatigue 

 Losing weight without changes in diet or exercise  Feeling chronically tired or weak 

Colorectal cancer can cause iron deficiency anemia, leading to persistent fatigue and weakness. 

 When to Act: If you experience unexplained weight loss or persistent fatigue, consult your doctor for further evaluation. 

4. Abdominal Pain, Cramping, or Bloating 

 Persistent discomfort in the lower abdomen  Frequent bloating or cramping not linked to food intolerance 

As tumours grow, they can cause obstruction or inflammation, leading to noticeable discomfort. 

 When to Act: If abdominal pain is ongoing and accompanied by other symptoms, seek medical attention. 

5. A Feeling of Incomplete Bowel Emptying 

 Feeling like your bowels aren’t fully emptying after a bowel movement 

This symptom is often overlooked, but it could be a sign of a tumour blocking the rectum or colon. 

 When to Act: If this feeling persists for weeks, get screened. 

Who is at Risk for Colorectal Cancer? 

Colorectal cancer affects both men and women, but certain risk factors can increase susceptibility: 

 Age – Risk increases after 50, though cases in younger adults are rising.  Family History – Having a first-degree relative with colorectal cancer doubles the risk.  Diet – High consumption of red/processed meats, low fibre intake contributes to higher risk.  Obesity – Excess body fat is linked to increased inflammation and cancer risk.  Smoking & Alcohol – Heavy alcohol use and smoking increase oxidative stress, promoting cancer growth. Inflammatory Bowel Disease (IBD) – Conditions like Crohn’s disease and ulcerative colitis elevate risk.  Physical Inactivity – Sedentary lifestyles are associated with higher rates of colorectal cancer. 

Colorectal Cancer Screening: When Should You Get Checked? 

Early detection through screening saves lives by identifying precancerous polyps before they turn into cancer. 

Recommended Screening Guidelines 

Ages 45+ – Routine screenings for average-risk individuals (NHS currently starts this at 50)  Earlier Screening (before 45) – If you have a family history or genetic predisposition  Screening Methods: Colonoscopy (every 10 years) – Gold standard for detecting and removing polyps  Faecal Occult Blood Test (annually) – Detects blood in stool, a potential early sign  CT Colonography (every 5 years) – Less invasive option but requires follow-up if abnormalities are found 

 Tip: If you have a family history, consult your doctor about starting screenings before 45. 

Lifestyle Strategies to Prevent Colorectal Cancer 

While some risk factors (like genetics) can’t be changed, lifestyle modifications can significantly lower your risk of developing colorectal cancer. 

1. Eat a Fibre-Rich, Anti-Inflammatory Diet 

A diet high in fibre and plant-based foods reduces the risk of colorectal cancer by improving gut health and digestion. 

 Increase Fibre Intake:  Leafy greens, beans, lentils, oats, nuts, seeds, whole grains  Aim for 25-30g of fibre per day 

Reduce Processed & Red Meats: 

  Processed meats (bacon, sausages, hot dogs) contain carcinogens linked to colorectal cancer  Limit red meat to 1-2 servings per week 

 Eat Antioxidant-Rich Foods:  Berries, turmeric, garlic, green tea help reduce inflammation and combat oxidative stress 

2. Maintain a Healthy Weight 

Excess weight, particularly belly fat, increases colorectal cancer risk. 

 Strength Training & Regular Exercise – Reduces insulin resistance and inflammation  Daily Movement – Aim for 30 minutes of moderate exercise (brisk walking, cycling, swimming) 

 Tip: Even a 10% reduction in body weight can significantly lower cancer risk. 

3. Reduce Alcohol & Quit Smoking 

 Smoking and excessive alcohol consumption increase gut inflammation and oxidative damage. 

 Alcohol: Stick to moderate consumption (1 drink/day for women, 2 for men) Quit Smoking: Long-term smokers have a 40% higher risk of colorectal cancer 

4. Prioritise Gut Health 

A healthy gut microbiome is essential for lowering inflammation and supporting immunity. 

 Probiotic & Fermented Foods – Yogurt, kefir, sauerkraut, kimchi  Prebiotic Foods – Onions, garlic, asparagus, bananas  Limit Artificial Sweeteners – Can disrupt gut bacteria balance 

5. Manage Stress & Get Quality Sleep 

Chronic stress and poor sleep contribute to inflammation and hormone imbalances, increasing cancer risk. 

 Prioritise Sleep: Aim for 7-9 hours per night  Practice Stress Management: Try meditation, deep breathing, or nature walks 

Prevention is Key 

 Recognising early symptoms and getting screened can save your life  Lifestyle changes—diet, exercise, and stress management—significantly lower colorectal cancer risk  Regular screenings starting at age 45 (or earlier with family history) are essential 

 Take Action Today: Schedule your next preventative health check, make small lifestyle upgrades, and encourage loved ones to do the same.