Inflammatory bowel disease
What is Inflammatory bowel disease?
Inflammatory bowel disease is a group of chronic conditions that cause inflammation in the digestive tract. The two main types are Crohn's disease and ulcerative colitis. Both conditions involve the immune system attacking the lining of the intestines.
Crohn's disease can affect any part of the digestive tract from mouth to anus. Ulcerative colitis only affects the colon and rectum. Both conditions cause periods of active symptoms called flares and periods of remission when symptoms improve or disappear.
About 3 million adults in the United States live with inflammatory bowel disease. The condition typically develops before age 30, but it can occur at any age. Early detection and management can help prevent complications and improve quality of life.
Symptoms
- Persistent diarrhea that lasts more than a few weeks
- Abdominal pain and cramping, especially after eating
- Blood or mucus in stool
- Urgent need to have a bowel movement
- Unintended weight loss from poor nutrient absorption
- Fatigue and low energy levels
- Reduced appetite and nausea
- Fever during active flares
- Mouth sores and inflammation
- Joint pain and skin rashes in some cases
Symptoms can range from mild to severe and may come and go over time. Some people experience long periods without symptoms between flares.
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Causes and risk factors
The exact cause of inflammatory bowel disease remains unknown, but researchers believe it involves a combination of genetic, immune, and environmental factors. The immune system mistakenly attacks healthy tissue in the digestive tract, causing ongoing inflammation. Family history plays a significant role, as having a parent or sibling with the condition increases your risk.
Smoking increases the risk of Crohn's disease but may oddly protect against ulcerative colitis. Diet does not cause inflammatory bowel disease, but certain foods can trigger flares in people who already have the condition. Stress and emotional factors do not cause the disease but can worsen symptoms. Living in industrialized countries and urban areas appears to increase risk, suggesting environmental triggers may play a role.
How it's diagnosed
Doctors diagnose inflammatory bowel disease using a combination of medical history, physical examination, blood tests, stool tests, and imaging studies. Blood tests can detect inflammation markers like sed rate, which becomes elevated when the intestines are inflamed. These tests help monitor disease activity and track how well treatments are working.
Colonoscopy and endoscopy allow doctors to view the inside of the digestive tract and take tissue samples for analysis. Imaging tests like CT scans or MRI can reveal inflammation and complications in areas that are difficult to reach with a scope. Rite Aid offers blood testing for inflammation markers at Quest Diagnostics locations nationwide, helping you and your doctor track disease activity between visits.
Treatment options
- Anti-inflammatory medications like aminosalicylates to reduce intestinal inflammation
- Corticosteroids for short-term control of severe flares
- Immunosuppressants to calm the overactive immune response
- Biologic therapies that target specific proteins causing inflammation
- Identifying and avoiding food triggers that worsen your symptoms
- Eating smaller, more frequent meals to reduce digestive strain
- Staying hydrated, especially during flares with diarrhea
- Managing stress through mindfulness, therapy, or relaxation techniques
- Getting adequate nutrition, sometimes with supplements or specialized formulas
- Surgery to remove damaged portions of the intestine in severe cases
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- Simple blood draw at your nearest lab
- Results in days, not weeks
- Share results with your doctor
Frequently asked questions
Crohn's disease can affect any part of the digestive tract and often involves deeper layers of intestinal tissue. Ulcerative colitis only affects the colon and rectum and causes inflammation in the innermost lining. Both are types of inflammatory bowel disease with similar symptoms but different patterns of inflammation.
Blood tests cannot diagnose inflammatory bowel disease on their own, but they provide important information about inflammation levels. An elevated sed rate suggests active inflammation in the body, which helps doctors monitor disease activity. Diagnosis requires additional tests like colonoscopy and imaging studies to visualize the digestive tract.
No, these are completely different conditions. Inflammatory bowel disease involves actual inflammation and damage to the intestinal lining that shows up on tests and imaging. Irritable bowel syndrome is a functional disorder with digestive symptoms but no visible inflammation or tissue damage. The two conditions require different treatments.
Trigger foods vary from person to person, but common culprits include dairy products, high-fiber foods during flares, spicy foods, and alcohol. Keeping a food diary helps identify your specific triggers. Working with a dietitian can help you create a nutrition plan that meets your needs while avoiding foods that worsen symptoms.
Currently, there is no cure for inflammatory bowel disease. Treatment focuses on reducing inflammation, managing symptoms, and achieving long periods of remission. Many people live full, active lives with proper treatment and lifestyle management. Research continues to advance toward better treatments and potentially a cure in the future.
Testing frequency depends on your disease activity and treatment plan. During active flares, doctors may check inflammation markers every few weeks to monitor progress. During remission, testing every 3 to 6 months helps catch early signs of inflammation before symptoms appear. Your doctor will create a monitoring schedule based on your individual needs.
Stress does not cause inflammatory bowel disease, but it can trigger or worsen flares in people who already have the condition. The gut and brain communicate closely through the nervous system. Managing stress through relaxation techniques, therapy, or lifestyle changes may help reduce flare frequency and severity.
Long-term inflammation can lead to intestinal scarring, strictures that narrow the bowel, and fistulas that create abnormal connections between organs. Malnutrition and anemia are common due to poor absorption and blood loss. People with inflammatory bowel disease also have a higher risk of colon cancer after having the disease for 8 to 10 years.
Yes, most women with inflammatory bowel disease can have healthy pregnancies. The best time to conceive is during remission when the disease is well controlled. Some medications are safe during pregnancy while others need to be adjusted. Talk to your doctor before getting pregnant to create a safe management plan.
No, diet does not cause inflammatory bowel disease. The condition results from immune system dysfunction and genetic factors. However, certain foods can trigger symptoms or flares in people who already have the disease. A balanced diet supports overall health and may help manage symptoms, but it cannot prevent or cure the condition.