Irritable Bowel Syndrome (IBS)
IBS is common, it is real, and it responds to treatment.
Irritable bowel syndrome affects how the gut and the brain communicate. The bowel becomes more sensitive and its muscle contractions less coordinated, which produces pain, bloating, and changes in bowel habits. Nothing is structurally damaged, which is why scans and routine bloodwork usually come back normal. That result frustrates a lot of patients who have been told nothing is wrong. Something is wrong. It is a functional disorder rather than a structural one, and it has recognized diagnostic criteria and established treatments.
Symptoms
- Abdominal pain or cramping, often relieved by a bowel movement
- Diarrhea, constipation, or alternating between the two
- Bloating and visible abdominal distension
- Urgency, or a feeling of incomplete emptying
- Mucus in the stool
- Symptoms that flare with stress or with particular foods
Symptoms That Are Not IBS
Some symptoms point away from IBS and need investigation: rectal bleeding, unintended weight loss, fever, anemia, symptoms that wake you from sleep, or new symptoms starting after age 50. A family history of colorectal cancer, inflammatory bowel disease, or celiac disease also changes the picture. Part of our job is making sure a diagnosis of IBS is the right one rather than a label applied to something else.
How We Evaluate It
Diagnosis rests mainly on your history and the pattern of your symptoms. Depending on that picture, we may test for celiac disease, check inflammatory markers, screen for infection, or perform a colonoscopy — particularly if you are due for screening anyway or if anything in your history suggests inflammatory bowel disease.
Treatment
Treatment is tailored to which symptoms dominate. Dietary changes help many patients, and a structured low-FODMAP approach has good evidence behind it, though it works best with guidance rather than as an indefinite restriction. Fiber can help or worsen things depending on the type and on your particular pattern, which is worth working out rather than guessing at. Medications are chosen according to whether diarrhea, constipation, or pain is the main problem, and several options exist for each.
Because the gut-brain connection is central to IBS, treatments that address stress and the nervous system — including certain low-dose medications used for their effect on gut sensitivity rather than mood, and gut-directed behavioral therapy — genuinely help. That is not a suggestion that your symptoms are imagined. It reflects how the condition actually works.