Many other disorders can affect the digestive tract. Some can have symptoms that may be similar to or overlap with gastrointestinal (GI) functional or motility disorders. These will have uniquely identifying features which differentiate them from functional GI or motility disorders.

Abdominal Adhesions
Anal Fistulas
Celiac Disease
Clostridium Difficile (C. Difficile)
Congenital Sucrase-Isomaltase Deficiency (CSID)
Eosinophilic Gastroenteritis
Food Allergies
• Gastrointestinal Infections (e.g., Giardia, Yersinia)
Inflammatory Bowel Disease
Lactose Intolerance
Narcotic Bowel Syndrome
Radiation Therapy Injury to the Colon and Rectum
Short Bowel Syndrome  
Superior Mesenteric Artery (SMA) Syndrome
Rare Diseases

2019 Advocacy Event


Share your digestive health story with your Members of Congress in Washington, DC, at IFFGD's 2019 National Advocacy Event on the Hill

Your voice is needed to create change. 

Visit the Event Page

Download the Registration Form

Book Your Hotel Room

Working with Your Doctor

patient doctor

Successful relationships with healthcare providers are an important part of managing life with a long-term digestive disorder.

Doctor–Patient Communication

How to Help Your Doctor Help You

How to Talk to Your Doctor