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Doctor insights on: Could I Have Colon Cancer 2 Years After Clear Colonoscopy

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Dr. Barry Rosen
4,351 Doctors shared insights

Cancer (Definition)

Cancer is a group of diseases that is characterized by uncontrolled cell growth leading to invasion of surrounding tissues that spread to other parts of the body. Cancer can begin anywhere in the body and is usually related to one or more genetic mutations that allow normal cells to become malignant by interfering with internal cellular control mechanisms, such as programmed cell death or by preventing ...Read more


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Would it be possible to develope colon cancer large enough for blockage 5 years after an all clear colonoscopy?

Would it be possible to develope colon cancer large enough for blockage 5 years after an all clear colonoscopy?

Sometimes: Unfortunately yes. Some less common cancers have very rapid doubling times. And can grow quite large. A left colon cancer is more likely to obstruct than one on the right. ...Read more

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Can you have colon cancer that causes flat stools two years after clean colonoscopy?

Can you have colon cancer that causes flat stools two years after clean colonoscopy?

CA 2 y postcolonsocp: Possible if they missed one before or if you have strong family Hx of colon cancer. Need more details. ...Read more

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Possibility of having colon cancer two years after having colonoscopy that revealed two polyps 1 hyper, 1 tubular and diverticulosis.

Possibility of having colon cancer two years after having colonoscopy that revealed two polyps 1 hyper, 1 tubular and diverticulosis.

Exceptions are there: Cancer usually takes 5 years to start and get detected but there are exceptions. Also, sometime, due to to poor preparation, everything will not be seen in colonoscopy.
Please discuss with your GI doctor. ...Read more

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How fast does colon cancer progress? Dad (50 years old)was recommended colonoscopy 8 months ago. He never went. Little bit worried.

How fast does colon cancer progress? Dad (50 years old)was recommended colonoscopy 8 months ago. He never went. Little bit worried.

Varies: On average, it takes about 10 years from the initiation of damage to invasive colon cancer, but there is considerable variation. Your dad my not have colon cancer, Colonoscopy is for early detection and prevention of colon cancer and it is a good idea for your dad to have it done. ...Read more

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Mom had colon cancer 10 years ago. I had a colonoscopy in 2006 and it was clean. When should I have another one? I'll be 35 in may.

Mom had colon cancer 10 years ago. I had a colonoscopy in 2006 and it was clean. When should I have another one? I'll be 35 in may.

Speak to family doc: I recommend speaking to your family doctor to discuss your case and based on your history have a health exchange of your options. Wishing you the best. ...Read more

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42 years old, had a grandparent (moms side) had colon cancer and 1st cousin (dad side)who had colon cancer. Do I need to get colonoscopy now or at 50?

42 years old, had a grandparent (moms side) had colon cancer and 1st cousin (dad side)who had colon cancer. Do I need to get colonoscopy now or at 50?

Depends: If colon cancer was diagnosed before the age of 52 in your family, get colonoscopy now. Usually colonoscopy is advised at 50, If there is a family history of colon cancer then get it at 10 years before the age at which colon cancer was diagnosed in the relative who had cancer.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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I am 43, based on my many symptoms and years of chronic constipation, would be wise to have a endoscopy and colonoscopy? My grandad had colon cancer

I am 43, based on my many symptoms and years of chronic constipation, would be wise to have a endoscopy and colonoscopy? My grandad had colon cancer

Yes: Talk to you primary care provider. Ask for a colonoscopy. If you get resistance talk to your health insurance company. You will get peace of mind from the scope. Hope this helps. ...Read more

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I've had two colonoscopies in the last 10 yrs, w/ the last 3 yrs ago? Dr thinks I have IBS. What are the odds of having colon cancer now?

I've had two colonoscopies in the last 10 yrs, w/ the last 3 yrs ago? Dr thinks I have IBS. What are the odds of having colon cancer now?

Remote: A clean colonoscopy result three years ago and your age essentially rule out colon cancer.
For good health - Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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Are there any clear symptom differences between hemorrhoids and colon cancer? A colonoscopy has a long wait time and I'm scared.

Are there any clear symptom differences between hemorrhoids and colon cancer? A colonoscopy has a long wait time and I'm scared.

Both: Can bleed and cause changes in stool caliber or pattern. Getting a colonoscopy should not require a long wait time. Check with your pcp mfor a referral to another doctor performing colonoscopies that may have a shorter wait time. Being 23 yo, less likely colon cancer. Do not be scared of the unknown and see a colon and rectal surgeon for evaluation in office. ...Read more

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If someone had colon cancer a year ago how often should he get a colonoscopy and do all colon and rectal cancers starts from a polyp?

If someone had colon cancer a year ago how often should he get a colonoscopy and do all colon and rectal cancers starts from a polyp?

It depends, and yes: If the colon cancer was small, repeat colonoscopy should be done every year. If it was big or obstructed the colon, repeat colonoscopy might be necessary in 3 or 6 months. Ask your oncologist. And yes, all colon carcinomas are believed to start as polyps. ...Read more

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I did a CT scan came back negative for diverticulitis but showed a narrowing of the colon. 3cm. Other organs are ok. Does it mean I have colon cancer? I have no blood in stool but I had two episode of complete blockage with vomiting. Colonoscopy next

Colonoscopy: Colonoscopy, that you planning, should settle the issue.
Wish you good health!
Have a diet rich in fresh vegetables, fruits, whole grains, milk and milk products, nuts, beans, legumes, lentils and small amounts of lean meats. Avoid saturated fats. Drink enough water daily, so that your urine is mostly colorless. Exercise at least 150 minutes/week and increase the intensity of exercise gradually. Do not use tobacco, alcohol, weed or street drugs in any form.
Practice safe sex, if you have sex. ...Read more

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How likely is colon cancer in 31 year old? Doc said if CT Normal for RUQ pain then colonoscopy next. Is this necessary? No other symptoms

How likely is colon cancer in 31 year old? Doc said if CT Normal for RUQ pain then colonoscopy next. Is this necessary? No other symptoms

Perhaps not?: Generally speaking, a 31 year old patient with RUQ pain is unlikely to need a colonoscopy, especially if a CT is normal. It would be rare indeed for colon cancer to be causing these symptoms at your age. I assume you've had a normal abdominal ultrasound. If you haven't had an ultrasound that would be the first test to do before a CT. An online consultation at Health Tap might be helpful. ...Read more

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I'm 39. I had dark red blood (maroon) in my stool. I have a history of hemorrhoids. My mother died this year of colon cancer. My doctor, then gastro-entologist recommended a colonoscopy. A colonoscopy is rather pricey - should I have one?

I'm 39. I had dark red blood (maroon) in my stool. I have a history of hemorrhoids. My mother died this year of colon cancer. My doctor, then gastro-entologist recommended a colonoscopy. A colonoscopy is rather pricey - should I have one?

Yes: Yes, you should get a colonoscopy. Your dark red blood in stool (hematochezia) is a concerning sign and due to your family history of colon cancer, a colonoscopy should be performed. Although it is expensive, in your situation with your family history and symptoms, the benefits (potentially early detection/treatment of colon polyps) outweigh the negatives (high cost). Follow up with GI doc. ...Read more

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I had a colonoscopy 17 months ago could the symptoms previously mentioned still be colon cancer?

I had a colonoscopy 17 months ago could the symptoms previously mentioned still be colon cancer?

Unlikely Dx: Some times possible but only 17 months ago you had scope, you have an attack of diverticulits. See your doctor for examination, reevaluation and possible rx of antibiotics, if perforates will be a surgical emergency ...Read more

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Colon cancer I had a colonoscopy 31/2 yrs. Ago but am having trouble lately could polyps grow that quickly I won't have another colonoscopy for 6 mo?

Colon cancer I had a colonoscopy 31/2 yrs. Ago but am having trouble lately could polyps grow that quickly I won't have another colonoscopy for 6 mo?

Very unlikely: Adenomatous polyps (the ones that can turn into cancer) become more common the older you are. The more the number of polyps seen and removed, the higher the growth rate and likely the chance of finding new ones. Having polyps or cancer at a young age though should trigger shorter intervals to surveillance colonoscopies. ...Read more

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Grandmother died of colon cancer in her 70s. Granddaughter has had 3 clean colonoscopies in her 50 s. How often should I be screened?

Yes, over 50: Every one over 50 years should undergo colonoscopy. If there is a history of colon cancer in the family, it can be done earlier. The biggest discomfort is the bowel prep to get ready for test. If you don't want a colonoscopy, it can be done by ct scans and performing virtual colonoscopy. Early colon cancer usually begins as a polyp and is curable. Colonoscopy is generally repeated every 5 years. ...Read more

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2 yrs. After a colonoscopy I had another and they found a large polyp in the colon is that unusual? I have colon cancer in my family is that a concern

2 yrs. After a colonoscopy I had another and they found a large polyp in the colon is that unusual? I have colon cancer in my family is that a concern

Not unusual.: Colon polyps recur or you grow new ones. This is why it is important to have regular colonoscopies, especially with your personal and family history. ...Read more

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Could I have a pet scan to check for colon cancer instead of having a colonoscopy?

I agree, No: Pet-ct scans are typically used after a diagnosis of cancer to look for other spread of the tumor. If you are looking for an alternative to routine colonoscopy, ct-colonography or virtual colonoscopy is an option. This still involves a bowel prep but requires no sedation. If something is found, you may still need a colonoscopy. Insurance companies are not quite on-board paying for this as yet. ...Read more

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Is colon cancer removable by a colonoscopy?

Possibly: We believe most colon cancers progress through a polyp stage. Polyp simply means growth and can be any size or configuration but can be small. Early on a cancer can still be partly a polyp and be removed during colonoscopy. They still need to be evaluated and treated as a cancer however, and it does not necessarily mean the cancer is cured by just removing it as a cancerous polyp. ...Read more

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Should I get a colonoscopy yearly to detect colon cancer?

Should I get a colonoscopy yearly to detect colon cancer?

Colonoscopy: Generally there are guidelines for this and it is based on your age and risk and is not usually required on a yearly basis. See the acs website
meeting with a local GI or surgeon can also help decide on how frequently this should be performed, . ...Read more

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Why don't women get colonoscopies considering they can get colon cancer too?

Why don't women get colonoscopies considering they can get colon cancer too?

They should: It is recommended that both men and women undergo screening colonoscopy at age 50.Women get colon cancer also. ...Read more

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Its necessary to have a colonoscopy when you are of the age of 50, Should one get one sooner if Colon cancer is in the family? What age

Its necessary to have a colonoscopy when you are of the age of 50, Should one get one sooner if Colon cancer is in the family? What age

Reason &indication: Yes, in asymptomatic general population surveillance colonoscopy done at age of 50 the common age for colon cancer If you have symptoms, including genetic predisposition above rule does not apply, done at any age. Age is no exception to cancer Do not get panicky Speak to your doctor and go for preliminary simple investigations first, before under taking complex tests. ...Read more

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Do all polyps need to be removed in colonoscopy to avoid colon cancer?

Do all polyps need to be removed in colonoscopy to avoid colon cancer?

Yes: Not all polyps are pre-canerous, most are. The determination of whether the polyp is precancerous or not usually requires examination by a pathologist and that necessitates removal. There is no good reason to not remove a polyp detected on colonscopy. All most all colon cancers start in polyps, therefore it is necessary to remove polyps to prevent colon cancer. ...Read more

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Dad had colon cancer stage 2 at 63. I'm 44. Just took pinnacle biolab 2nd gen fit test with negative result. Need colonoscopy?

Dad had colon cancer stage 2 at 63. I'm 44. Just took pinnacle biolab 2nd gen fit test with negative result. Need colonoscopy?

See answer: Most recommendations suggest screening starting age 50. 75% of colon cancers are not familial or hereditary. Having a father with colon cancer increases your risk by at least 20%. HOWEVER YOUR ABSOLUTE RISK IS STILL LOW. You cannot be faulted for wanting a colonoscopy before age 50 but it's not absolutely necessary. *Focus should be on PREVENTION, not detection: **see comments below for specifics. ...Read more

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Does colonoscopy prevent colon cancer?

Does colonoscopy prevent colon cancer?

Likely: Cancers start as polyps. Removing polyps decreases cancer risk, but no test guarantees finding every polyp. ...Read more

Dr. Scott Keith
13 Doctors shared insights

Colon (Definition)

The colon is another term for the large intestine. This is the final portion of the digestive system, responsible for absorbing water and storing stool before evacuation. It is divided into sections described as cecum; ascending, transverse, descending and ...Read more


Dr. Charles Cattano
2,047 Doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more