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Understanding Your Risk for Colon Cancer

Colon cancer is one of the most common cancers diagnosed in the United States with more than 106,000 new cases diagnosed last year. The colon is your large intestine, and it's essential to removing waste from your body.

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Understanding Your Risk for Colon Cancer

Colon cancer affects thousands of Americans each year. Many people feel unsure about their risk. At GastroDoxs in Houston, we believe that knowledge is power. When you learn about your risk factors and how to spot signs early, you can protect your health. This guide covers important topics—from colon cancer symptoms in women to when to get a colonoscopy—in clear, simple language.
"Early detection makes all the difference," says Dr. Bharat Pothuri, a Houston gastroenterologist. "Most colon cancers begin as small, harmless polyps. If we find them early, we can remove them before they turn into cancer."

Section 1: What Is Colon Cancer?

Colon cancer starts in the large intestine. It often begins as a small growth called a polyp. Some polyps can slowly become cancer over time. If not found early, cancer may spread to other parts of the body.

Key points:

Section 2: Common Risk Factors

Anyone can get colon cancer, but some factors raise your chances.

Risks You Can’t Change

Risks You Can Control

Dr. Pothuri shares, "Healthy eating and staying active can lower your colon cancer risk. Even small changes matter."

Section 3: Colon Cancer Symptoms in Women

Symptoms in women can be mistaken for other conditions. Watch for:

Talk to your doctor if these signs show up. Early action saves lives.

Section 4: Signs You Don't Have Colon Cancer

Not every symptom means cancer. You might feel reassured if:

Still, it's smart to see a doctor for a screening.

Section 5: Blood Test for Colon Cancer

A colonoscopy is the best test, but some blood tests can also help. These check for signs of cancer in your blood.

Types of Tests

Pros

Cons

According to the Mayo Clinic, blood tests work best with other screenings.

Section 6: Is Colon Cancer Hereditary?

Some cases run in families. About 5–10% of colon cancers are linked to genes.

Genetic Conditions

Family History

Dr. Pothuri says, "If colon cancer runs in your family, start screening as early as your 20s."

Section 7: Stages of Colon Cancer

Doctors use stages to decide on treatment. Here's a basic breakdown:

Table: Colon Cancer Stages and Survival Rates

Stage Spread 5-Year Survival Rate
0 Lining only 90–95%
I Into colon wall 75–85%
II Through wall/tissue 60–75%
IIIA–IIIC Nearby lymph nodes 35–70%
IV Distant organs 14%

Source: American Cancer Society

Stage III details

Section 8: When Should You Get a Colonoscopy?

Colonoscopy is the top test for spotting polyps and cancer.

Recommended Times

See a doctor sooner if you have:

Polyps can often be removed during the same visit.

Section 9: Prevention and Reducing Your Risk

You can’t change your age or family genes, but healthy habits help.

Diet Tips

Lifestyle Habits

Regular Checkups

Section 10: Local Houston Resources

Houston has many care options.

GastroDoxs Gastroenterology Clinic

MD Anderson Cancer Center

UTHealth Houston

Conclusion

Understanding your colon cancer risk helps you act early. Whether you're checking symptoms or planning a colonoscopy, you have choices. Early screening can save lives. Talk to your doctor. Dr. Bharat Pothuri and the GastroDoxs team in Houston are here to help.

Bharat Pothuri

About the Author

Dr. Bharat Pothuri is a Board-Certified Gastroenterologist and Hepatologist. With extensive experience in digestive health, he specializes in advanced endoscopic procedures, chronic GI disorder management, and preventive care. Dr. Pothuri is dedicated to providing expert, patient-focused insights to help improve gut health and overall well-being.

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Frequently Asked Questions

1. What are early signs of colon cancer?

Bowel changes, blood in stool, or weight loss.

2. What are colon cancer symptoms in women?

Women may also have bloating or belly cramps.

3. Are blood tests for colon cancer reliable?

Helpful, but not as strong as colonoscopy.

4. Is colon cancer hereditary?

Sometimes. Linked to genes like Lynch syndrome.

5. What is the survival rate for stage 3 colon cancer?

Ranges from 35% to 80% based on the stage.

6. How many stages are there?

Five—from Stage 0 to IV.

7. When should I get a colonoscopy?

Start at age 45, or earlier if you have risk factors.

8. What foods help prevent colon cancer?

Fruits, veggies, whole grains, and lean meat.

9. Can colon cancer be fully prevented?

Not always, but early checks and a healthy lifestyle help.

10. Where can I learn more?

Visit the CDC or NIH.

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