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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.
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:
Location: Large intestine (colon)
Origin: Begins as polyps
Growth: May spread to nearby organs or lymph nodes
Section 2: Common Risk Factors
Anyone can get colon cancer, but some factors raise your chances.
Risks You Can’t Change
Age 50 or older
Family history of colon cancer
Inherited conditions like Lynch syndrome or FAP
Risks You Can Control
Eating lots of red or processed meats
Lack of exercise
Being overweight
Smoking or drinking heavily
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:
Belly pain or cramps that don’t go away
Bloating
Unexplained weight loss
Constipation or diarrhea
Blood in the stool
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:
No blood in your stool after several checks
Symptoms improve with diet changes
Pain goes away with rest or simple treatment
No family history or genetic risk
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
CEA Test: Looks for a protein tied to cancer
SEPT9 DNA Test: Finds tumor DNA
Pros
Non-invasive
Some tests can be done at home
Cons
Less accurate than a colonoscopy
May miss early cancer
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
Lynch Syndrome: Raises risk for colon and other cancers
FAP: Leads to many polyps at a young age
Family History
One close relative with colon cancer doubles your risk
Risk is higher with more family cases or early onset
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:
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.
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.