General Gastroenterology

Overview:

Esophagitis is irritation or inflammation of the esophagus lining, often caused by acid reflux, infections, certain medications, or allergies. Chronic esophagitis can lead to scarring or narrowing of the esophagus, making early treatment important.

Overview:

Gastroesophageal Reflux Disease (GERD) occurs when stomach acid frequently flows back into the esophagus, irritating its lining. It's common in adults and can cause chronic discomfort, sleep problems, and long-term complications such as Barrett’s esophagus. Risk factors include obesity, smoking, and certain foods or drinks.

Overview:

Precancerous Barrett’s esophagus occurs when long-term acid reflux causes the lining of the esophagus to change, replacing normal tissue with tissue similar to the intestinal lining. While Barrett’s itself is not cancer, it’s considered precancerous because it raises the risk of developing esophageal cancer over time. Regular monitoring and treatment of acid reflux are important to lower risks and protect long-term esophageal health.

Overview:

Swallowing disorders, also known as dysphagia, make it difficult to move food or liquids from the mouth to the stomach. These can result from neurological conditions, injuries, congenital abnormalities, or age-related changes. Dysphagia can occur in both children and adults, with potentially serious complications like aspiration pneumonia.

Overview:

Celiac disease is an autoimmune disorder where the body reacts to gluten (a protein in wheat, rye, and barley). This reaction damages the small intestine lining and prevents nutrient absorption. It can appear at any age and tends to run in families. Long-term, untreated celiac disease can lead to malnutrition and other health problems.

Overview:

Gastritis is inflammation of the stomach lining, caused by infections (like H. pylori), alcohol, certain medications, or autoimmune conditions. It may be acute or chronic, and if untreated, can lead to ulcers or bleeding. It’s more common in people who regularly use NSAIDs or drink heavily.

Overview:

Gastroparesis is delayed stomach emptying due to weakened stomach muscles or nerve damage, often linked to diabetes, surgery, or certain medications. Food remains in the stomach longer than normal, leading to nausea, bloating, and nutritional issues. It can be chronic and requires careful management.

Overview:

Helicobacter pylori, also known as H. pylori, is a common bacterial infection that lives in the stomach lining. It’s a major cause of gastritis and ulcers, and it increases the risk for stomach cancer. Many people have no symptoms, but untreated infections can lead to serious complications.

Overview:

Peptic ulcer disease develops when open sores form in the lining of the stomach or small intestine, most often due to infection with Helicobacter pylori (H. pylori) bacteria or long-term use of NSAID pain relievers. While anyone can develop ulcers, risk increases with smoking, alcohol use, and stress. Without proper treatment, ulcers can cause serious complications, making early diagnosis and care especially important.

Overview:

Chronic constipation is a long-term digestive condition characterized by infrequent, difficult, or incomplete bowel movements. It may result from dietary habits, medication use, lifestyle factors, or underlying medical issues affecting colon or pelvic function. Chronic constipation can significantly impact comfort and quality of life, often requiring medical evaluation to determine its cause and guide effective management.

Overview:

Chronic diarrhea lasts more than four weeks and can result from infections, inflammatory bowel disease, malabsorption, or medications. It affects people of all ages and can lead to dehydration or nutrient deficiencies if untreated. Evaluating the underlying cause is essential to guide effective treatment.

Overview:

Colorectal polyps are growths on the inner lining of the colon or rectum that can sometimes develop into colorectal cancer over time. Colorectal cancer occurs when abnormal cells in these areas grow uncontrollably, forming malignant tumors. Early detection through screening is essential, as many cases are treatable and even preventable when polyps are removed before becoming cancerous.

Overview:

Diverticulitis happens when small pouches in the colon, called diverticula, get inflamed or infected. It is more common in adults over 40 and people who eat a low-fiber diet. Symptoms can include abdominal pain, fever, and changes in bowel habits. Getting treatment early can help prevent serious problems, such as infections, abscesses, or a tear in the colon, and support a faster, safer recovery.

Overview:

Diverticulosis is the presence of small pouches (diverticula) in the colon, often caused by aging or low-fiber diets. Most people have no symptoms, but it can increase the risk of diverticulitis if the pouches become inflamed or infected.

Overview:

Gas and bloating are common digestive complaints that may result from diet, food intolerances, swallowing excess air, or underlying conditions like irritable bowel syndrome (IBS) or small intestinal bacterial overgrowth (SIBO). While often harmless, frequent or severe symptoms may point to a more serious digestive disorder that requires evaluation.

Overview:

IBS is a chronic gastrointestinal disorder affecting the large intestine, with symptoms varying by subtype. It is influenced by diet, stress, gut motility, and sensitivity. IBS can affect adults of any age, often beginning in young adulthood. Subtypes include:

• IBS-D (diarrhea-predominant)
• IBS-C (constipation-predominant)
• IBS-M (mixed)
• IBS-U (unclassified)

Overview:

Microscopic colitis is inflammation of the colon that can only be seen under a microscope. It’s a common cause of chronic watery diarrhea, especially in middle-aged and older adults. The exact cause is unknown, but it may be linked to autoimmune conditions or medications.

Overview:

SIBO occurs when an excessive number of bacteria grow in the small intestine, disrupting digestion and nutrient absorption. It can develop due to conditions that slow intestinal movement, prior abdominal surgery, or digestive disorders like IBS. Left untreated, SIBO may cause malnutrition and persistent digestive symptoms. Proper diagnosis and targeted treatment are essential for restoring gut balance and improving overall digestive health.

Overview:

Crohn’s disease is a chronic inflammatory bowel disease (IBD) that can affect any part of the digestive tract, most often the small intestine and colon. It causes ongoing inflammation that may lead to abdominal pain, diarrhea, fatigue, and weight loss. The exact cause is unknown but involves immune, genetic, and environmental factors. With proper treatment, symptoms can be managed, and quality of life improved.

Overview:

Ulcerative colitis is a chronic inflammatory bowel disease (IBD) that affects the lining of the large intestine and rectum. It causes ongoing inflammation and sores (ulcers) that lead to abdominal discomfort, diarrhea, and rectal bleeding. The condition develops from an abnormal immune response, though the exact cause is unclear. With medical care, many patients achieve symptom control and maintain long-term remission.

Overview:

Anemia is a condition that occurs when the body doesn’t have enough healthy red blood cells to carry oxygen, often due to blood loss in the digestive tract or a lack of iron. It can develop slowly over time and is common in people with chronic gastrointestinal (GI) conditions. Identifying the source is essential to preventing recurrence and restoring healthy blood levels. GI bleeding and iron deficiency are common causes of anemia.

Overview:

Arteriovenous malformations (AVMs) are abnormal, fragile blood vessel connections between arteries and veins that can form anywhere in the gastrointestinal tract. These lesions may rupture and cause intermittent or chronic bleeding. AVMs are often found in older adults and may be linked to other vascular disorders. Diagnosis and treatment focus on identifying and controlling the bleeding source.

Overview:

Ulcers are sores in the lining of the stomach or small intestine, while varices are enlarged veins in the esophagus or stomach, often linked to liver disease. Both can bleed and become serious, requiring prompt treatment. Bleeding may range from mild to life-threatening, and finding the cause is critical for prevention.

Overview:

Diverticular bleeding occurs when small pouches (diverticula) in the colon wall rupture and bleed. It is a common cause of lower gastrointestinal bleeding, often presenting suddenly and painlessly. While the bleeding may stop spontaneously, some cases require medical intervention to locate and control the source. Early evaluation helps prevent recurrence and manage potential complications such as anemia.

Overview:

Hemorrhoidal bleeding occurs when swollen veins in the rectum or anus rupture or become irritated. It is one of the most common causes of bright red rectal bleeding, typically noticed on toilet paper or in the toilet bowl. Although usually mild and self-limited, persistent or painful bleeding requires evaluation to rule out other causes and guide appropriate treatment.

Overview:

Obscure gastrointestinal bleeding refers to bleeding from the digestive tract that remains unexplained after standard endoscopic evaluations. It may originate from small-bowel lesions such as ulcers, AVMs, or tumors. Specialized diagnostic tools are often needed to detect the source. Identifying the underlying cause is essential for targeted therapy and preventing ongoing or recurrent blood loss.

Overview:

Abnormal liver tests, often found during routine blood work, signal possible liver inflammation, injury, or dysfunction. Elevated enzymes may result from infections, alcohol use, medications, fatty liver disease, or other conditions. An abnormal result doesn’t always mean serious disease but usually requires further testing to identify the underlying cause.

Overview:

Alcohol-related liver disease develops after long-term heavy alcohol use, causing liver inflammation, fat buildup, scarring, and potentially cirrhosis. It is one of the most common causes of serious liver disease in the U.S. and worldwide. Risk increases with the amount and duration of drinking, though genetics and nutrition may also influence progression.

Overview:

Cirrhosis is severe scarring of the liver caused by long-term damage from conditions such as hepatitis, alcohol use, or fatty liver disease. As scar tissue replaces healthy tissue, liver function declines, leading to serious complications, including bleeding from varices, portal hypertensive gastropathy, and hepatic encephalopathy. Although cirrhosis is often irreversible, early diagnosis and treatment can slow progression and improve quality of life.

Overview:

Drug-induced hepatitis is liver inflammation caused by medications, herbal supplements, or toxins. It may result from predictable effects (such as acetaminophen overdose) or unpredictable immune reactions. Severity ranges from mild enzyme elevation to liver failure. Identifying and stopping the offending drug is essential, and most people recover fully with appropriate treatment.

Overview:

Non-alcoholic fatty liver disease (NAFLD), now also referred to as metabolic associated fatty liver disease (MASLD), occurs when fat builds up in the liver without significant alcohol use. It is strongly linked to obesity, diabetes, and high cholesterol. It is one of the most common liver conditions worldwide and can progress to inflammation, scarring, or cirrhosis in some patients.

Overview:

Malabsorption occurs when the small intestine cannot properly absorb nutrients, vitamins, or minerals from food. This condition may result from digestive enzyme deficiencies, intestinal inflammation, infection, or structural damage to the intestinal lining. Malabsorption can affect multiple body systems, leading to nutritional deficiencies and weight loss. Identifying the underlying cause is essential for effective treatment and long-term health management.

Overview:

Ongoing abdominal pain or bloating without a clear cause may be linked to digestive conditions such as irritable bowel syndrome (IBS), food intolerances, or more serious gastrointestinal (GI) disorders. Careful evaluation helps rule out underlying causes and provides relief strategies.

Unintentional weight loss can signal underlying digestive conditions such as malabsorption, ulcers, celiac disease, or cancer. It requires prompt medical evaluation to identify the cause, especially if accompanied by other gastrointestinal (GI) symptoms.