What is normal-transit constipation (NTC) and what is the difference between chronic constipation and irritable bowel syndrome with constipation (IBS-C)?

Updated: Jul 05, 2019
  • Author: Marc D Basson, MD, PhD, MBA, FACS; Chief Editor: BS Anand, MD  more...
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Answer

NTC is the most common subtype of primary constipation. Although the stool passes through the colon at a normal rate, patients find it difficult to evacuate their bowels. Patients in this category sometimes meet the criteria for IBS with constipation (IBS-C). The primary difference between chronic constipation and IBS-C is the prominence of abdominal pain or discomfort in IBS. Patients with NTC usually have a normal physical examination.


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