Someone has cyclospora and let the internet ask everything — here’s what they said

So there is a stomach parasite making its way across the United States right now, and one very brave — or very bored, very symptomatic — person decided to sit down and let the entire internet ask them anything about it.

The parasite is called cyclospora. It’s tiny, it’s microscopic, it comes from contaminated food and water, and the way this person described what it’s doing to their body is going to live in my head rent free for a while.

I don’t know what compels someone to do a public Q&A while actively suffering from an intestinal parasite, but I am genuinely grateful they did. Because this is the most useful health content I’ve encountered in months and it came from a Reddit thread, not a doctor’s office.

What even is cyclospora, and why is it spreading right now?

Cyclospora cayetanensis is a single-celled parasite that infects the small intestine — and according to the CDC, outbreaks in the US are most commonly tied to fresh produce imported from regions where the parasite is endemic. Think fresh herbs, raspberries, bagged salad mix. The stuff you think is healthy. Of course it’s the healthy stuff.

The 2026 spread has been linked to several states. It’s not like it just shows up in one place and stays politely contained. It moves. Because people move, and produce moves, and here we are.

The particularly annoying thing about cyclospora is that you don’t get it from another person. You get it from food or water that has been contaminated with feces containing the parasite. So nobody gave it to you directly. A piece of cilantro did. That’s somehow worse.

What does cyclospora actually feel like?

This is where the Reddit thread became the most important document I’ve read all year. The person doing the Q&A did not hold back, and I respect them enormously for it.

The quote that started everything — “it is pure liquid and forceful” — is going to follow me to my grave. That’s not a description. That’s a warning. That’s a PSA. That’s a bumper sticker I would put on nothing because I have taste, but still.

They described explosive watery diarrhea that comes with almost no warning, significant cramping, fatigue so heavy they said it felt like “being pinned to the bed by an invisible force,” and nausea that wasn’t constant but hit in waves. The worst part — and there were several candidates for worst part — was that it lasted weeks. Not days. Weeks. Cyclospora doesn’t clear on its own the way a regular stomach bug does. You need antibiotics, specifically Bactrim, and even then recovery is not fast.

Someone in the comments asked if they’d tried the BRAT diet. They said yes. It did not help. “The banana did nothing,” they wrote. And honestly, same.

Why didn’t they just go to the doctor immediately?

This came up a lot in the thread, and the answer was frustrating but completely understandable. In the first few days, it looked like a regular stomach thing. A bad one, sure, but not something that immediately screams “intestinal parasite” to a person who has never had an intestinal parasite.

By the time it was clearly not going away, they did go in. But here’s the thing — cyclospora doesn’t always show up on a standard stool test. You have to specifically request testing for it, or have a doctor who thinks to order it. A lot of people get misdiagnosed or sent home with general “stomach bug” advice and told to stay hydrated.

This tracks with what reporting from outlets covering the outbreak has noted — cyclospora is chronically underdiagnosed because most routine ova and parasite tests don’t catch it without a specific request for modified acid-fast staining. Which is a sentence I did not expect to type today.

Someone asked if they felt stupid for not going sooner. They said a little, but that they also genuinely couldn’t have known. Which is fair. We are not trained to think “parasite” when our stomach hurts.

What were the best questions from the thread?

Okay, this is where it got good. The internet showed up.

Someone asked — completely seriously — “do you think Big Bidet is behind this?” The person responded “maybe this was all caused by Big Bidet™” and honestly, the trademark symbol placement was elite comedic timing for someone who was actively suffering from a parasite.

Someone else asked what they’d been eating before they got sick, clearly trying to figure out if they themselves were at risk. The answer was a salad. From a restaurant. Which is information we all have to sit with.

There were also genuinely useful questions, like whether anyone in their household got it too — they didn’t, which the person found baffling — and what the antibiotic treatment was like. Apparently Bactrim is effective but causes its own set of digestive complaints, which, as someone pointed out in the replies, feels deeply unfair.

Should you actually be worried right now?

Here’s my honest take — probably more aware than worried, but aware in a real way, not just a passive “hm, that’s interesting” way.

Cyclospora outbreaks happen every year in the US, generally in late spring and summer. Most years they’re smaller and more contained. This one is getting attention because of the scope and the number of states involved. The CDC tracks these and you can check their current outbreak data if you want the actual numbers.

The practical stuff — wash your produce, even the pre-washed bags, even the stuff that says triple-washed, just wash it — is genuinely useful advice that most of us do inconsistently at best. I’m not going to tell you this changes everything, because it doesn’t. But it’s a good reminder that the produce supply chain is long and complicated and sometimes a parasite sneaks through.

If you’ve had watery diarrhea for more than a few days and it’s not getting better, go in and specifically ask them to test for cyclospora. Don’t just accept “stomach bug, drink fluids.” Push for the specific test.

This is one of those situations where being your own advocate at the doctor’s office actually matters, which I know is exhausting, but here we are.

It makes sense because the people who got diagnosed and treated quickly had dramatically shorter recovery times than the ones who waited or got the wrong guidance. That’s not a scare tactic. It’s just what the data and this very informative Reddit stranger both confirmed.

Genuinely, the person who did this Q&A while sick with a parasite deserves some kind of award. Not a physical award, because they probably can’t travel right now, but a conceptual one.

Wash your produce. Ask for the specific test if something won’t quit. And maybe don’t eat bagged salad from a restaurant for a few weeks while this thing is making its rounds — I know that’s a sacrifice, but your gut will thank you.

The internet is chaotic and often terrible, but sometimes one extremely brave symptomatic person sits down and gives us all the health information we actually needed. Today was that day.

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