Medical Services related to Michelle Marie Muza-Moons MD

Colon and Rectal Polyps

Colon and rectal polyps occur in about 25 percent of men and women ages 50 and older. Not all polyps will turn into cancer, and it may take many years for a polyp to become cancerous. Risk factors include a family history of polyps or colon cancer; an inflammatory bowel disease, such as ulcerative colitis or Crohn’s disease; a high-fat, low-fiber diet; tobacco and alcohol use; little exercise; and obesity.

Crohn's Disease and the Small Bowel

At the Small Bowel Program, part of the University of Michigan’s Gastroenterology Division, our multidisciplinary team collaborates with the Inflammatory Bowel Disease program to diagnose and treat issues in the small bowel that relate to Crohn’s disease.

Crohn's Disease and Ulcerative Colitis (IBD)

The University of Michigan Inflammatory Bowel Disease Center is dedicated to the comprehensive medical and surgical treatment of adult patients with Crohn’s disease and ulcerative colitis, with U.S. News and World Report again ranked our Division of Gastroenterology as one of America’s best in Gastrointestinal Disorders.


The multidisciplinary team of the Michigan Bowel Control Program, will work with you to determine the cause of your diarrhea and provide an individualized treatment program that treats both the symptom and any underlying cause. 

Digestive and Liver Health

Digestive health at the University of Michigan Health System diagnoses and treats diseases of the gastrointestinal system of the body, including irritable bowel syndrome, Crohn's Disease, GERD, liver disease and constipation.

Gastrointestinal Diagnostics & Procedures

The Gastroenterology Division at the University of Michigan provides specialized diagnostic and therapeutic procedures and services to diagnose and treat patients with a wide variety of gastrointestinal disorders. These services are all provided through the multidisciplinary Medical Procedures Unit, which is located in University Hospital. We perform approximately 15,000 procedures per year.

IBD School Video Series

To help you, your friends and family better understand Crohn's disease and ulcerative colitis, the team of experts at the University of Michigan Crohn's & Colitis Program have created a series of short, educational videos called IBD School.

Make an Appointment

Make an appointment with an GI or liver specialist (gastroenterologist or hepatologist) at the University of Michigan or call one of our special clinic phone numbers. Call 1-888-229-7408 to get answers to your questions.

Our Care Team

Your gastrointestinal medical care team will depend upon the specific GI condition you are being treated for and often includes doctors with different medical specialties along with other health professionals collaborating to give you the best care possible. This is called a multidisciplinary approach, and at the University of Michigan, our goal is always to coordinate this multidisciplinary care in a way that is convenient and efficient for you.


A small bowel pouch is created surgically to serve as a stool reservoir for people whose large bowel has been completely removed. The pouch is usually located just above the anus, although rarely, it is near an ileostomy.

Why Choose Michigan for Your Digestive and Liver Care

Gastroenterology specializes in the diagnosis and treatment of diseases of the gastrointestinal system of the body, which includes the esophagus, stomach, intestines, liver, gall bladder, pancreas, colon and rectum.

Your Digestive System

Your digestive system is made up of a series of organs that allows your body to get the nutrients and energy it needs from the food we eat.  As food travels through the digestive system it is broken down, sorted, and reprocessed before being circulated around the body to nourish and replace cells and supply energy to our muscles. This page includes an animation of the digestive process as well as a description of the various digestive organs and diseases related to them that we treat at the University of Michigan.