The FDA is deepening its investigation into a multistate cyclosporiasis outbreak, with patients reporting a symptom often described as “explosive diarrhea.” But what does that term actually mean?
Dr. Dean Blumberg, chief of pediatric diseases at UC Davis Health, told Nexstar that the phrase is more descriptive than clinical. “It’s descriptive. You can picture it when people say it,” he said. “Usually what that means is a large volume of diarrhea, and more of sudden onset.”
While not an official medical diagnosis, “explosive diarrhea” signals severe, often watery stools accompanied by forceful gas and cramping. Blumberg noted it’s a hallmark of parasitic infections like cyclosporiasis, differentiating it from other gastrointestinal illnesses. For instance, norovirus typically causes watery diarrhea for a few days, while cholera presents with white, “rice-water” stools.
“If you look at the different infections and causes of diarrhea, [the symptoms] are a little different,” Blumberg explained.
The ongoing outbreak has drawn attention to food safety, with the FDA focusing on Taylor Farms iceberg lettuce as a potential source. The agency has faced scrutiny, including criticism from Senator Jon Ossoff over the scrapping of CDC parasite surveillance.
As cases climb, the FDA has retracted a lettuce recall test result but continues its probe. Meanwhile, three Ohio residents have sued Taco Bell and its lettuce supplier over the outbreak.
Understanding “explosive diarrhea” helps the public recognize cyclosporiasis symptoms and seek timely care. Blumberg emphasized that while the term isn’t medical, it accurately conveys the severity and suddenness of the condition.
