January 2026 – Could Capsule Endoscopy Be a Good Way to Look for Flukes or Worms?
Capsule endoscopy can detect intestinal helminths such as hookworm, tapeworm, and Ascaris within the small bowel, but it is not reliable for all worms or flukes, particularly those residing in the biliary tree, liver, or colon. Diagnostic yield depends on parasite size, motility, location, bowel preparation, and capsule transit time; small, non-motile, or highly mobile species may be missed. Capsule endoscopy is therefore best used as an adjunctive diagnostic tool when stool studies and conventional endoscopy are inconclusive.
In addition, upper endoscopy with duodenal aspiration and washout, followed by detailed microbiological examination, can be a valuable method for detecting parasites and worms lodging in the proximal small intestine, as well as associated dysbiosis or fungal overgrowth.
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