Early Signs of Colon Cancer People Often Miss

Colon cancer is highly treatable when detected early and in many cases, preventable through routine screening. Even so, many people put off screening or dismiss early symptoms because they seem mild, embarrassing, or easy to explain away. Knowing what’s normal — and what isn’t — can help you decide when it’s time to see a provider.

In Middle Tennessee, providers at Highpoint Health see patients every year who wish they had taken symptoms seriously sooner. Recognizing early warning signs and understanding when screening is recommended can make a meaningful difference in protecting your health.

Changes in Your Bowel Habits

One of the earliest signs of colon cancer can be a noticeable change in how often you have bowel movements or what they look like. This doesn’t mean every change is cancer, but patterns that last more than a few weeks should be checked.

Pay attention to:

• Having diarrhea or constipation that doesn’t improve
• Feeling like you can’t fully empty your bowels
• Narrow or thin-looking stools over time

Short-term changes can happen from diet, stress, or illness. The concern is when changes persist without a clear reason.

Blood in the Stool or Rectal Bleeding

Blood in the stool may look bright red, dark, or make the stool appear black or tar-like. Sometimes it’s visible in the toilet or on toilet paper. While hemorrhoids are a common cause of rectal bleeding, blood in the stool should never be ignored.

Ongoing Abdominal Discomfort

Persistent abdominal discomfort such as cramping, gas pain, or bloating can be a sign something is wrong.

Unexplained Weight Loss or Appetite Changes

Losing weight without trying, or noticing a reduced appetite, can be a clue that something more serious is going on.

Fatigue and Weakness

Slow blood loss in the digestive tract may cause anemia, leading to tiredness, weakness, or shortness of breath.

Understanding Your Risk

While colon cancer becomes more common after age 45, younger adults can develop it as well. Age is only one factor: your risk may also be higher with a family history of colorectal cancer or advanced polyps, inflammatory bowel disease, or lifestyle factors such as smoking, obesity, or physical inactivity.

Screening plays a central role in reducing risk. A colonoscopy can detect cancer at an earlier stage and remove precancerous polyps during the same procedure. For most adults at average risk, screening begins at age 45, though earlier testing may be recommended based on individual risk.

If you’re unsure about your risk or when to begin screening, talk with your provider. They can review your history and recommend a screening plan tailored to you.

When to Talk to a Provider

Contact a provider if you:

• Notice blood in your stool
• Have bowel changes lasting more than a few weeks
• Experience ongoing abdominal pain or cramping
• Feel unusually tired or are losing weight without trying

Find a Provider at Highpoint Health