Occult gastrointestinal (GI) bleeding is bleeding from the GI tract that is not noticeable to patients or physicians. Patients with unexplained anemia (ie, not attributable to another cause such as menstrual bleeding), particularly iron deficiency anemia, should be evaluated...
Colorectal cancer (CRC) is the third leading cause of cancer death in the United States. CRC screening reduces CRC deaths. Although the median age at diagnosis is 67 years, the incidence in younger individuals has been increasing, and younger patients are more likely to...
Inflammatory bowel diseases (IBDs) comprise a group of conditions thought to be caused by a dysregulated host immune response to the gut microbiome. IBDs, which affect 1.3% of Americans, include Crohn disease (CD), ulcerative colitis (UC), and microscopic colitis. UC and...
Malabsorption syndromes are a heterogenous group of conditions that can cause distressing gastrointestinal symptoms. Celiac disease is most common and is triggered by exposure to gluten. Tissue transglutaminase immunoglobulin A is the diagnostic test of choice; management is...
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