A gastroenterologist specializes in the digestive system, and this includes the esophagus, stomach, intestines, liver, pancreas, and gallbladder. Each organ plays a role in digestion. After medical school, these specialists complete years of extra training before they treat patients independently. This is how they approach gut health and what they can do to help:
Using Endoscopic Tools
Endoscopy lets the gastroenterologist see inside your digestive tract, and it requires no large incisions. The doctor guides a thin, flexible tube with a camera to view tissue and remove polyps. When patients receive sedation, they need someone to drive them home afterward. Typical endoscopic procedures include the following:
- Endoscopy: examines the esophagus, stomach, and first section of the small intestine
- Colonoscopy: examines the full colon and rectum for polyps, inflammation, or bleeding
- Sigmoidoscopy: focuses on the lower third of the colon
- Capsule endoscopy: uses a swallowed pill camera to photograph the small intestine
Examining the Gastrointestinal Tract
Treatment starts with an evaluation, and the first visit usually involves a detailed conversation. The doctor asks about your symptoms because patterns in pain, bowel habits, and diet guide the next steps. Your medical history and family history also shape the evaluation. Some digestive conditions run in families, so the doctor may ask about relatives with colon cancer or celiac disease.
Once the conversation ends, the gastroenterologist performs a physical exam. The doctor presses on different areas of your abdomen to check for tenderness or swelling. A stethoscope picks up bowel sounds, and unusual sounds may point to a blockage or slowed digestion. Your answers to follow-up questions help narrow the list of possible causes.
Lab tests and imaging add more detail to the exam. Blood tests reveal anemia, inflammation, or liver problems that may not cause obvious symptoms. Stool samples detect infections or hidden blood, and breath tests identify bacterial overgrowth or lactose intolerance. If the doctor needs images of your organs, an ultrasound, CT scan, or MRI may follow.
Prescribing Medications
After the doctor confirms a diagnosis, medication often becomes the first line of treatment. Acid reducers treat reflux and ulcers, and antibiotics clear infections such as H. pylori. Anti-inflammatory and immune-modifying drugs manage Crohn’s disease and ulcerative colitis. Some patients take these medications long-term because their conditions flare without steady treatment.
Laxatives are used to relieve constipation, and antidiarrheal drugs slow frequent bowel movements. Antispasmodic medications are used to reduce cramping linked to irritable bowel syndrome. Your gastroenterologist also reviews your current prescriptions for possible interactions. If side effects appear, the doctor adjusts the dose or switches to a different drug.
Performing Surgical Corrections
Some digestive problems require procedures beyond medication. When a condition needs surgery, the gastroenterologist typically works with a general or colorectal surgeon. Many corrections happen during endoscopy, and others take place in an operating room. Surgical corrections include:
- Polypectomy: removes polyps from the colon before they grow larger
- Dilation: stretches a narrowed esophagus to ease swallowing
- Stent placement: opens blocked bile ducts or sections of the intestine
- Bleeding control: seals ulcers or damaged blood vessels with clips or heat
- Resection: removes a diseased section of bowel in an operating room
Visit a Gastroenterologist
If you have ongoing heartburn, bloating, or changes in bowel habits, a gastroenterologist evaluates the cause. Bring a list of your symptoms and medications to the first appointment. Your primary care doctor may provide a referral, though some offices accept patients without one. Call a medical clinic today, and our staff will schedule your consultation.
