Intact house fly found in man's intestines shocks doctors

Doctors in Missouri, United States, were surprised to discover an abnormality during a routine colonoscopy in a 63-year-old patients. During the procedure, which went smoothly until reaching the transverse colon of the large intestine, the doctors found a completely intact fly.

Matthew Bechtold, chief of Gastroenterology at the University of Missouri, confirmed to The Independent that the fly was dead after being examined.

The patient, whose identity is being kept private, had a relatively normal medical history, with mild heart problems, asthma and tinnitus. Before the colonoscopy, she followed the usual preparations, consuming only clear liquids the day before the procedure.

Fly discovered in man’s colon shocks doctors: ‘This is just unheard of’ https://t.co/3VbF9blAGL pic.twitter.com/2DilYDU0a7

— New York Post (@nypost) November 29, 2023

The man informed doctors that, two days earlier, he had eaten pizza and lettuce, but did not remember eating a fly with any of his food. Baffled, he claimed to have no idea how the fly had gotten into his colon.

The mystery of the intact fly in the colon

The unusual presence of the intact fly in the transverse colon is described as a “very rare colonoscopic finding and a mystery as to how the intact fly reached the transverse colon.” This medical mystery was documented in the journal American Journal of Gastroenterology.

Bechtold told the British media that The fly would have to have entered the body through the mouth or rectum, although doctors are not yet certain about this.

Bechtold considered it unlikely that the fly could have entered through the mouth and survived the digestive process due to the enzymes and stomach acid. On the other hand, the theory that it entered through the rectum poses difficulties, since, according to Bechtold, it would involve creating an opening large enough to allow the fly to fly undetected to the colon and pass into the middle large intestine in a very curvy large intestine without light.

Although there are rare cases of fly and larvae infestation in the human intestines, known as intestinal myiasis, it usually requires the ingestion of foods containing eggs and larvae, and Survival of hostile gastric conditions is unlikely, according to quote The Independent to the United States National Library of Medicine.

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