First of all for clarification are you asking if you would have similiar sx between Crohn's and IBS or IBD ? Let me see if I can help you out ?
Crohn's disease may be confused with a number of digestive disorders associated with abdominal pain and changes in bowel movements, including the following:
Ulcerative colitis. Crohn's and colitis are the most common conditions among a group of disorders known as inflammatory bowel diseases (IBDs). They are closely related, but ulcerative colitis typically affects only the colon, while Crohn's can affect any part of the digestive tract. When Crohn's occurs only in the colon — and it can do so at times — it can be difficult to distinguish between the two disorders. However, certain complications can make the diseases easier to identify. For example, fistulas (abnormal connections between two organs or between an organ and the skin) and strictures (abnormal narrowings of organs such as the intestines and the esophagus) are seen more frequently with Crohn's disease.
Another useful way to distinguish these disorders is the pattern of inflammation. During colonoscopy, while ulcerative colitis has continuous areas of chronic inflammation, and IBS shows no areas of chronic inflammation. A pattern of intermittent inflammation can therefore help in identifying Crohn's.
IBS is not an inflammatory bowel disease. It is characterized by a group of symptoms, including crampy abdominal pain, diarrhea, and constipation. The symptoms can be confused with those of Crohn's and colitis because of their persistence, but IBS does not cause any chronic inflammatory changes. There are certain 'red flags' that differentiate a chronic disease like Crohn's from a group of symptoms like IBS. In addition to abdominal pain and diarrhea, people with Crohn's disease often have blood in their stool and experience what we call extra-intestinal symptoms, such as weight loss, fever, joint pain, and anemia. These are usually not seen in IBS." Doctors don't know the exact cause of IBS, but it is believed to reflect oversensitivity of the digestive system.
My hubby has Crohn's and I have IBS. What a pair we make.
Isn't this a great forum ????
Good luck with your colonscopy.