Patient Center

About Gastroenterologists

Symptoms and complaints related to the digestive tract are some of the most common reasons we take over-the-counter medications, prescription medication or seek the advice of health-care providers. Gastroenterologists, or “GIs,” are medical specialists with extensive training in diseases of the digestive tract. GIs can answer your questions, perform tests in making a diagnosis and prescribe the best course of treatment to help you feel better.

Find a GI

Locate an AGA member gastroenterologist in your area.

Locate a GI


The following brochures will help you understand how these procedures can benefit you and what you can expect before, during and after.

Preparing for a Capsule Endoscopy

Preparing for a Colonoscopy

Preparing for an Upper GI Endoscopy

Understanding Fecal Microbiota Transplantation (FMT)

What is CT Colonography?

What is ERCP?

Diet and Medication

The following brochures provide some basic facts about how GIs treat and manage all aspects of the digestive tract, including nutritional needs and obesity, as well as complications from medications.

Childhood Obesity

Food Allergies, Fructose Intolerance and Lactose Intolerance

Gut Check: Know Your Medicine — A Campaign on the Safe Use of OTC Medicines 

NSAIDS (Nonsteroidal Anti-Inflammatory Drugs)

Understanding Obesity and Its Treatment


From AGA Partners


Learn more about your medical condition and explore your treatment options using UpToDate®, the same resource trusted by more than 600,000 clinicians around the world. After using UpToDate you will be more informed, so you can ask the right questions and have important conversations with your health-care provider.

Tummy Trends

Takeda developed Tummy Trends to provide IBS patients a discreet tool to track symptoms and behaviors in private and at their convenience. 

Shire UCentral

Shire UCentral is an educational website providing patients with ulcerative colitis (UC) access to resources and tools to help them manage their disease.

Digestive Conditions

The following brochures will provide some basic facts, to help you better understand your condition and to serve as a starting point for discussions with your doctor.

Celiac Disease

Cirrhosis of the Liver

Clostridium difficile 

Colorectal Cancer



Gas in the Digestive Tract




Inflammatory Bowel Disease

Irritable Bowel Syndrome


Peptic Ulcer Disease

Comparing Websites for Patients

To help guide patients to reliable online resources, AGA offers reviews of disease-specific information on commonly used websites.

Select Readings

Visit the AGA Journals Blog — the fast, easy way to keep up with the latest research.

The following publications from AGA Press provide additional information on managing and living with some of the most commonly diagnosed GI disorders.

IBD Self-Management: The AGA Guide to Crohn’s Disease and Ulcerative Colitis

The No-Diet Obesity Solution for Kids

Real Life with Celiac Disease: Troubleshooting and Thriving Gluten Free

Master Your IBS: An 8-Week Program to Control the Symptoms of Irritable Bowel Syndrome