Back to Results
Crohn Disease
Moderate
Crohn disease is a chronic inflammatory bowel disease that can cause inflammation anywhere along the digestive tract, although the small intestine and beginning of the large intestine are commonly affected. Symptoms may include persistent diarrhea, abdominal pain, weight loss, fatigue, reduced appetite, and sometimes fever. The disease can alternate between periods of active symptoms and remission. Inflammation may extend through the bowel wall and lead to complications such as narrowing, fistulas, abscesses, or nutritional deficiencies.
Body System
Digestive System
When to Seek Medical Attention
Seek prompt medical assessment for severe or worsening abdominal pain, persistent vomiting or diarrhea, blood in the stool, fever, dehydration, significant weight loss, or rapidly worsening symptoms. Emergency care is needed for severe abdominal pain with marked swelling, persistent vomiting, heavy bleeding, fainting, or signs of bowel obstruction.
Symptoms
4
Causes
2
Treatments
5
Diet
4
Overview
Crohn disease is a chronic inflammatory bowel disease that can cause inflammation anywhere along the digestive tract, although the small intestine and beginning of the large intestine are commonly affected. Symptoms may include persistent diarrhea, abdominal pain, weight loss, fatigue, reduced appetite, and sometimes fever. The disease can alternate between periods of active symptoms and remission. Inflammation may extend through the bowel wall and lead to complications such as narrowing, fistulas, abscesses, or nutritional deficiencies.
Symptoms 4
Diarrhea
Fever
Jaundice
Loss of Appetite
Causes 2
The exact cause of Crohn disease is not fully understood. It is thought to result from an abnormal interaction between the immune system, intestinal microorganisms, genetic factors, and environmental influences. Family history can increase susceptibility, but most people with a family history do not necessarily develop the disease. Smoking is associated with increased risk and can worsen disease activity. Crohn disease is not caused simply by stress or by eating a particular food, although diet and stress can influence symptoms in individual patients.
Autoimmune Disorder
Infection
Risk Factors
Risk factors for Crohn disease include a family history of inflammatory bowel disease, certain genetic factors, smoking, and some environmental influences. The disease can occur at any age but is often diagnosed in adolescents and young adults. People with certain immune-related conditions may have increased susceptibility. Smoking is particularly important because it can increase disease activity and complications. Diet does not directly cause Crohn disease, although individual foods may worsen symptoms during active disease.
Diagnosis
Diagnosis is based on a patient's medical history,
symptoms, physical examination and, when necessary,
laboratory or imaging investigations.
Crohn disease is diagnosed using a combination of medical history, physical examination, laboratory tests, stool testing, endoscopy, and imaging. Blood tests may identify anemia or inflammation, while stool tests can help assess intestinal inflammation and exclude infections. Colonoscopy with examination of the terminal ileum and biopsy is commonly important. Cross-sectional imaging such as MRI or CT enterography may evaluate the small intestine and complications. No single test establishes Crohn disease in every patient.
Prevention
Key Prevention Tips
There is no guaranteed way to prevent Crohn disease because its causes are complex and include genetic and immune factors
Not smoking is particularly important because smoking can increase disease activity and complications
People with Crohn disease can reduce complications through regular medical follow-up, appropriate treatment, nutritional support, and monitoring for deficiencies
Individual food triggers can be identified with professional guidance
Vaccination and preventive health care are also important for people receiving medicines that affect the immune system
Prevention Guidance
There is no guaranteed way to prevent Crohn disease because its causes are complex and include genetic and immune factors. Not smoking is particularly important because smoking can increase disease activity and complications. People with Crohn disease can reduce complications through regular medical follow-up, appropriate treatment, nutritional support, and monitoring for deficiencies. Individual food triggers can be identified with professional guidance. Vaccination and preventive health care are also important for people receiving medicines that affect the immune system.
Reminder: Prevention recommendations should be tailored to your personal health status and risk factors.
Treatment & Management 5
Detailed treatment guidance is currently being prepared.
Detailed treatment guidance is currently being prepared.
Detailed treatment guidance is currently being prepared.
Detailed treatment guidance is currently being prepared.
Detailed treatment guidance is currently being prepared.
Medical Note: The treatment information provided is intended for educational purposes only.
Always consult a qualified healthcare professional before starting,
stopping, or changing any treatment.
Diet & Nutrition 4
Recommended Foods
Low Residue Diet
May reduce bowel irritation during flare-ups.
Rice
Easy to digest.
Banana
Gentle on the digestive tract.
Lean Protein
Supports nutrition.
Foods to Avoid
Spicy Foods
May trigger symptoms.
High Fat Foods
May worsen digestive symptoms.
Alcohol
May aggravate inflammation.
Medical Nutrition Note: Diet recommendations are intended for general educational purposes and should be tailored to individual health needs by a qualified healthcare professional.
Frequently Asked Questions 5
Crohn Disease is a chronic inflammatory bowel disease.
Diarrhea, abdominal pain, and weight loss are common.
There is no permanent cure, but treatment controls symptoms.
Colonoscopy, biopsy, and imaging tests are used.
Yes, dietary adjustments may help reduce symptoms.
Helpful Tip: These answers provide general medical information.
Consult your healthcare provider for advice tailored to your condition.