Concerns About Colorectal Cancer After Polyp Removal: What You Should Know

Concerns about colorectal cancer?

Hello Dr.
Yang, I am 46 years old and three years ago I underwent a colonoscopy, during which several small polyps were found.
The physician removed them, and the pathology report indicated they were benign polyps.
The doctor advised me to have another colonoscopy in 3 to 5 years.
However, in the past two days, after using the restroom, I noticed fresh blood on the toilet paper, approximately the size of a ten-dollar coin.
I would like to ask Dr.
Yang if it is possible for this to have developed into colon cancer just one year after my colonoscopy.
Thank you for your guidance!

Tiger, 40~49 year old female. Ask Date: 2017/05/11

Dr. Yang Zhichao reply Gastroenterology and Hepatology

Dear Mr.
TIGER,
The growth of tumors is unpredictable.
If you have a history of colorectal polyps and are currently experiencing rectal bleeding, it is advisable for you to schedule a colonoscopy with a gastroenterologist.
Thank you for your inquiry.
Changhua Hospital cares about your health.

Reply Date: 2017/05/11

More Info

Dear Patient,
Thank you for reaching out with your concerns regarding colorectal cancer after polyp removal. It’s understandable to feel anxious, especially when you notice symptoms like rectal bleeding. Let’s break down your situation and address your questions.

Firstly, it’s important to understand that the presence of polyps in the colon does not automatically mean that you will develop colorectal cancer. Polyps are common, and many people have them without any issues. The type of polyps you had removed three years ago, as indicated in your pathology report, were classified as "general polyps," which typically have a low risk of progressing to cancer. However, certain types of polyps, such as adenomatous polyps, can have a higher risk of becoming cancerous over time.

Regarding your concern about the possibility of developing colorectal cancer within three years after the removal of polyps, it is indeed possible, but the likelihood depends on several factors, including the type and number of polyps previously removed, your family history of colorectal cancer, and other risk factors such as age, lifestyle, and underlying health conditions. Generally, if the polyps were benign and you have no other risk factors, the risk of developing cancer in such a short time frame is relatively low.

Now, concerning the fresh blood you noticed on the toilet paper, this symptom warrants attention. While it could be due to a benign cause such as hemorrhoids or anal fissures, it is essential to rule out any serious conditions, including the possibility of colorectal cancer. Blood in the stool or on toilet paper can be a sign of various gastrointestinal issues, and it is always best to consult with your healthcare provider when you notice such symptoms.

Given your history and the recent symptom of rectal bleeding, I recommend scheduling a follow-up appointment with your gastroenterologist. They may suggest a repeat colonoscopy to evaluate the current state of your colon and to check for any new polyps or abnormalities. This is particularly important since you are approaching the recommended interval for surveillance colonoscopy, which is typically every 3 to 5 years for individuals with a history of polyps.

In the meantime, it’s crucial to monitor your symptoms. If you experience any additional symptoms such as significant abdominal pain, changes in bowel habits, or weight loss, make sure to inform your doctor promptly. These could be signs that require immediate investigation.

Lastly, maintaining a healthy lifestyle can play a significant role in reducing your risk of colorectal cancer. This includes a diet rich in fruits, vegetables, and whole grains, regular physical activity, and avoiding smoking and excessive alcohol consumption. Staying informed about your health and adhering to screening recommendations are key components in the prevention and early detection of colorectal cancer.

In summary, while the risk of developing colorectal cancer shortly after polyp removal is generally low, your recent symptoms should be evaluated by a healthcare professional. Regular screenings and a healthy lifestyle are essential in managing your colorectal health. Please do not hesitate to reach out to your doctor for further evaluation and peace of mind.

Best regards,
Doctor Q&A Teams

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