Medically reviewed by Jeffrey A. Meyerhardt, MD, MPH
Irritable bowel syndrome (IBS) is a chronic disorder in which the large intestine undergoes abnormal contractions, producing abdominal pain, cramps, diarrhea, constipation, or a mix of these symptoms. (It is a different condition from inflammatory bowel disease (IBD), which most often occurs as ulcerative colitis or Crohns disease.) Colorectal cancer, which involves the uncontrolled growth of cells in a portion of the large intestine called the colon or rectum, can produce similar symptoms, so it is important to be aware of the differences between the two conditions.
In its early stages, colorectal cancer often doesnt produce any symptoms, but as the cancer grows and penetrates the walls of the colon, a variety of symptoms may arise, including:
Because IBS, colorectal cancer, and other digestive disorders, such as IBD, can produce similar symptoms, its a good idea to consult your doctor or primary care provider as soon as possible if you experience these symptoms, especially if they last more than a few days.
While colorectal cancer often doesnt produce symptoms until it has grown and spread, screening tests including fecal occult blood testing, colonoscopies, and sigmoidoscopies can detect the disease at its earliest stages. The American Cancer Society (ACS) recommends regular colorectal cancer screening starting at age 45 for people at average risk. People with a family history of the disease or who have certain other risk factors should talk to their physician about starting screening at a younger age, the ACS advises.
When colorectal cancer is found early, before it spreads, the five-year survival rate is 92% meaning more than nine out of 10 people who are diagnosed with an early stage of the disease, and treated, are alive five years later. Survival rates drop as the cancer becomes more advanced through the colon or rectum and surrounding lymph nodes, or if it spreads outside the colon or rectum.
To diagnose colorectal cancer, doctors may order blood tests as well as X-ray or CT scans. If colorectal cancer is strongly suspected, a colonoscopy is likely to be performed to view the lining of the colon or rectum and collect small samples of abnormal tissue for testing.
People with IBS need not be concerned that the condition increases their chances of developing colorectal cancer. A 2010 study by researchers at the University of Michigan found that patients with IBS are at no greater risk of having intestinal polyps (growths that can be a precursor to colorectal cancer), colorectal cancer, or inflammatory bowel diseases such as ulcerative colitis and Crohns disease than healthy people undergoing colonoscopies. The research indicates that colonoscopies are unnecessary for patients with IBS unless they show other signs specifically associated with colorectal cancer, such as bleeding from the gastrointestinal tract, weight loss, or anemia.
Originally posted here:
How Can I Tell the Difference Between Irritable Bowel Syndrome and Colorectal Cancer? - Dana-Farber Cancer Institute
- GW Pharma Reports Preliminary Topline Results Of Ulcerative Colitis Trial - October 15th, 2014 [October 15th, 2014]
- Ulcerative Colitis: Facts on Symptoms, Treatment and Diet - October 15th, 2014 [October 15th, 2014]
- Ulcerative Colitis - National Digestive Diseases ... - October 15th, 2014 [October 15th, 2014]
- CCFA: What is Ulcerative Colitis | Inflammatory Bowel Disease - October 15th, 2014 [October 15th, 2014]
- Ulcerative Colitis: Get Facts on Symptoms and Diet - October 15th, 2014 [October 15th, 2014]
- Ulcerative colitis - Wikipedia, the free encyclopedia - October 15th, 2014 [October 15th, 2014]
- Ulcerative Colitis Testimonial - Video - October 15th, 2014 [October 15th, 2014]
- My Fight With Ulcerative Colitis - Video - October 15th, 2014 [October 15th, 2014]
- Diet in Ulcerative Colitis - Best and Worst Foods - Video - October 15th, 2014 [October 15th, 2014]
- Why Ulcerative Colitis is (Literally) a Pain in the Butt - Video - October 15th, 2014 [October 15th, 2014]
- My Journey= Ulcerative Colitis Proctitis PART 1 - Video - October 15th, 2014 [October 15th, 2014]
- Top 15 Ways to Cure Ulcerative Colitis Naturally - Diet & Home Remedies - Video - October 15th, 2014 [October 15th, 2014]
- Updates in Ulcerative Colitis & Crohn's disease - October 17th, 2014 [October 17th, 2014]
- Ulcerative colitis Symptoms - Diseases and Conditions ... - October 17th, 2014 [October 17th, 2014]
- Dr. Morse Explains Ulcerative Colitis and Intestinal Conditions - Video - October 20th, 2014 [October 20th, 2014]
- Depression Stress Anxiety IBS Colitis Arthritis Treatment Allergy Testing Reiki Healing Scotland W - Video - October 20th, 2014 [October 20th, 2014]
- Taylor Healing process - Video - October 20th, 2014 [October 20th, 2014]
- Treating Pediatric Inflammatory Bowel Disease - Video - October 20th, 2014 [October 20th, 2014]
- Take Steps Walk for Crohn's and Colitis - Video - October 21st, 2014 [October 21st, 2014]
- Ulcerative Colitis & Me - Video - October 21st, 2014 [October 21st, 2014]
- Ferring Pharmaceuticals: CORTIMENT MMX, a new treatment for ulcerative colitis, receives European approval - October 22nd, 2014 [October 22nd, 2014]
- Sleep duration affects risk for ulcerative colitis - October 22nd, 2014 [October 22nd, 2014]
- My Journey= Ulcerative Colitis Proctitis PART#3 - Video - October 23rd, 2014 [October 23rd, 2014]
- Added benefit of vedolizumab is not proven - October 24th, 2014 [October 24th, 2014]
- My Journey= Ulcerative Colitis Proctitis PART#2 - Video - October 24th, 2014 [October 24th, 2014]
- Why Food Network Star Sunny Anderson Can't Eat Vegetables - October 24th, 2014 [October 24th, 2014]
- New compounds reduce debilitating inflammation - October 26th, 2014 [October 26th, 2014]
- Sleep Duration Linked to Ulcerative Colitis Risk in Study - October 27th, 2014 [October 27th, 2014]
- Ulcerative colitis: MedlinePlus Medical Encyclopedia - October 27th, 2014 [October 27th, 2014]
- Ulcerative Colitis - American Society of Colon and Rectal ... - October 27th, 2014 [October 27th, 2014]
- NHS Ulcerative Colitis - NHS Choices - Your health, your ... - October 27th, 2014 [October 27th, 2014]
- Ulcerative Colitis - October 27th, 2014 [October 27th, 2014]
- How to heal intestines | Ulcerative Colitis | SCD Lifestyle - Video - October 27th, 2014 [October 27th, 2014]
- Ulcerative Colitis - Causes, Symptoms, Diet & Herbal Remedies in Punjabi - Video - October 27th, 2014 [October 27th, 2014]
- Receptos: good results for ulcerative colitis drug - October 29th, 2014 [October 29th, 2014]
- Should I Drink Alcohol if I Have Crohn's Disease or Ulcerative Colitis - Video - October 29th, 2014 [October 29th, 2014]
- New clinical trial data: Multiple sclerosis drug candidate also shows promise for ulcerative colitis - October 30th, 2014 [October 30th, 2014]
- TSRI's MS Drug Also Shows Promise In Ulcerative Colitis - November 1st, 2014 [November 1st, 2014]
- Justin Mirigliani repping 260lbs on the Bench! Never Surrender! Fighting Ulcerative Colitis! - Video - November 1st, 2014 [November 1st, 2014]
- Managing Ulcerative Colitis Naturally: Outlook & Perspective - Video - November 1st, 2014 [November 1st, 2014]
- My Ulcerative Colitis Diet - Video - November 1st, 2014 [November 1st, 2014]
- Healing my Ulcerative Colitis - Video - November 2nd, 2014 [November 2nd, 2014]
- Peoria Connections Interview - Successes with autoimmune disease, ADHD, ulcerative colitis - Video - November 2nd, 2014 [November 2nd, 2014]
- Crohns Disease & Ulcerative Colitis The Diagnosing Difficulties - Video - November 2nd, 2014 [November 2nd, 2014]
- My Ulcerative Colitis Story - Video - November 3rd, 2014 [November 3rd, 2014]
- Pudge Rodriguez will be special guest at Crohns and Colitis Foundation dinner - November 4th, 2014 [November 4th, 2014]
- Diagnosing Crohns Disease & Ulcerative Colitis - Video - November 4th, 2014 [November 4th, 2014]
- Natural Treatment for Ulcerative Colitis with Causes and Symptoms - Video - November 5th, 2014 [November 5th, 2014]
- Acute Severe Ulcerative Colitis - Video - November 5th, 2014 [November 5th, 2014]
- CME Outfitters and USF Health to Host Medical Symposium in Conjunction with the 2014 Advances in IBD Crohns & Colitis ... - November 7th, 2014 [November 7th, 2014]
- How sleep affects my Ulcerative Colitis Symptoms - Video - November 7th, 2014 [November 7th, 2014]
- Healing my Ulcerative Colitis Webcam video from November 4, 2014 05:49 PM - Video - November 7th, 2014 [November 7th, 2014]
- Managing Extra-Intestinal Manifestations of Crohn's Disease & Ulcerative Colitis - Video - November 7th, 2014 [November 7th, 2014]
- Causes and Treatment of Crohns Disease and Ulcerative Colitis - Video - November 8th, 2014 [November 8th, 2014]
- How to stop the Cause of IBS, Crohn's and Ulcerative Colitis - Video - November 8th, 2014 [November 8th, 2014]
- Introduction to Ulcerative Colitis - Video - November 8th, 2014 [November 8th, 2014]
- Ulcerative Colitis Dr Tehsina0 - Video - November 8th, 2014 [November 8th, 2014]
- Taking Steps Against Crohn's and Colitis - November 9th, 2014 [November 9th, 2014]
- How To Make Chicken 3 Ways + Gut Healing Bone Broth - by Thyroid Loving Care - Video - November 10th, 2014 [November 10th, 2014]
- Ileal Pouch - Anal Anastomosis in Chronic Ulcerative Colitis - Video - November 10th, 2014 [November 10th, 2014]
- Vlog #1 - November 10 2014 - Video - November 11th, 2014 [November 11th, 2014]
- Ulcerative Colitis Patient Success Story - Video - November 11th, 2014 [November 11th, 2014]
- How to Recover from Ulcerative Colitis - Video - November 12th, 2014 [November 12th, 2014]
- Vlog #2 - November 11, 2014 - Living with Ulcerative Colitis - Video - November 13th, 2014 [November 13th, 2014]
- How IBD (Crohn's Disease and Ulcerative Colitis) Affects Mental Health - Video - November 15th, 2014 [November 15th, 2014]
- Ulcerative Colitis Got Me Down - Video - November 15th, 2014 [November 15th, 2014]
- Surgeon Spotlight: Dr. Amit Merchea - Chronic Ulcerative Colitis - Video - November 16th, 2014 [November 16th, 2014]
- Ulcerative Colitis Proctitis: Doctor Update, Medications - Video - November 16th, 2014 [November 16th, 2014]
- Ulcerative Colitis Got You Down Too? - Video - November 16th, 2014 [November 16th, 2014]
- Management of ulcerative colitis - Wikipedia, the free ... - November 17th, 2014 [November 17th, 2014]
- IBD Support Group: Crohn's Disease and Ulcerative Colitis - November 17th, 2014 [November 17th, 2014]
- Crohn's Disease, Ulcerative Colitis and the Team Challenge endurance training program - Video - November 17th, 2014 [November 17th, 2014]
- Let's CRUSH Ulcerative Colitis LIke a Coke Can - Video - November 19th, 2014 [November 19th, 2014]
- 21 Weeks Pregnant Update! - Ultrasound & Ulcerative Colitis - Video - November 20th, 2014 [November 20th, 2014]
- Healing my Ulcerative Colitis Webcam video from November 17, 2014 02:48 PM - Video - November 20th, 2014 [November 20th, 2014]
- Is Crohns Disease or Ulcerative Colitis Hereditary? - Video - November 22nd, 2014 [November 22nd, 2014]
- Celebrity chef Sunny Anderson on living with irritable bowel disease - November 23rd, 2014 [November 23rd, 2014]
- 13 Years with Ulcerative Colitis - Video - November 26th, 2014 [November 26th, 2014]
- Mark: Healed of Ulcerative Colitis - Video - November 26th, 2014 [November 26th, 2014]
- Colonoscopy of Ulcerative Colitis - Video - November 30th, 2014 [November 30th, 2014]