Patient Education
Understanding GI & Liver Conditions
An overview of the digestive and liver conditions I see most often in clinic — what they are, how they're typically diagnosed, and how they're managed. This is general information, meant to help you understand a diagnosis or conversation with your doctor, not to replace one.
Inflammatory Bowel Disease (Crohn's & Ulcerative Colitis)
IBD is a chronic condition in which the immune system causes ongoing inflammation in the digestive tract — the small intestine and colon in Crohn's disease, the colon alone in ulcerative colitis. Common symptoms include abdominal pain, diarrhea, rectal bleeding, weight loss, and fatigue, often with flares and periods of remission.
Diagnosis combines colonoscopy with biopsies, imaging, and blood/stool markers (like fecal calprotectin). Treatment has advanced substantially over the last decade: biologic and small-molecule therapies (anti-TNF agents, IL-23 inhibitors, JAK inhibitors, and others) can bring most patients into durable remission, and combining therapies is increasingly used for medically complex cases.
GERD (Acid Reflux)
Gastroesophageal reflux disease occurs when stomach acid regularly flows back into the esophagus, causing heartburn, regurgitation, and sometimes chest discomfort or a chronic cough. Occasional reflux is normal; GERD is when it's frequent enough to cause symptoms or damage the esophageal lining.
Most cases respond well to lifestyle changes and acid-suppressing medication (like proton pump inhibitors). Persistent or alarm symptoms — difficulty swallowing, unintentional weight loss, or bleeding — warrant endoscopy to rule out complications such as esophagitis or Barrett's esophagus.
Helicobacter pylori
H. pylori is a common stomach bacterium that can cause gastritis, peptic ulcers, and — over the long term — increases the risk of stomach cancer. Many carriers have no symptoms at all; others experience upper abdominal pain, bloating, or nausea.
Testing is done via breath test, stool antigen test, or biopsy during endoscopy. When present, a course of combination antibiotics plus acid suppression usually eradicates it. My own research has looked at how factors like vitamin D levels relate to H. pylori presence and treatment success.
Celiac Disease
Celiac disease is an autoimmune reaction to gluten that damages the lining of the small intestine, impairing nutrient absorption. It can present with classic digestive symptoms (diarrhea, bloating, weight loss) or more subtle signs like iron-deficiency anemia, fatigue, or unexplained osteoporosis.
Diagnosis typically starts with a blood antibody test (tTG-IgA), confirmed by small intestinal biopsy on endoscopy — ideally while still eating gluten. The only current treatment is a strict, lifelong gluten-free diet, which allows the intestinal lining to heal.
Colorectal Cancer Screening
Colorectal cancer is one of the most preventable cancers, because it usually develops slowly from polyps that can be found and removed during colonoscopy before they ever become cancerous. In Israel, the recommendation is to begin screening at age 50 for those at average risk — earlier if there is a family history of colorectal cancer or certain genetic conditions.
Screening options include colonoscopy (every 10 years if normal), stool-based tests (FIT, done annually), or other modalities depending on individual risk. My own research on age-stratified detection rates found meaningful polyp and cancer detection already in the 45–49 age group — a reminder to discuss your personal and family history with your doctor so screening starts at the right time for you.
Fatty Liver Disease (MASLD/NAFLD)
Metabolic dysfunction-associated steatotic liver disease (formerly NAFLD) is fat accumulation in the liver not caused by alcohol, closely linked to obesity, type 2 diabetes, and metabolic syndrome. It's now the most common chronic liver condition worldwide, and in a subset of patients progresses to inflammation, fibrosis, and eventually cirrhosis.
It's usually found incidentally on imaging or through mildly elevated liver enzymes, and staged with noninvasive tools like elastography or fibrosis blood-test scores. The most effective treatment remains lifestyle change — weight loss, dietary pattern (Mediterranean diet), and exercise — an area I've researched directly, including time-restricted eating as an add-on strategy.
This page offers general educational information about common GI and liver conditions. It isn't a diagnosis, and it doesn't account for your individual history or test results. If you have symptoms or concerns, please book a consultation.