Cyclospora: What It Is, How You Get It, and How Gut Testing Can Help

Jadyn McRitchie | August 4, 2026

When stomach symptoms drag on longer than expected, it’s easy to chalk it up to a “bug” and hope it passes. But one possible culprit is Cyclospora—a microscopic, one-celled parasite that can infect the small intestine and lead to lingering digestive issues (an illness called cyclosporiasis).

The good news: you can take a clear, proactive step toward answers. Our new Cyclospora Infection Test and our GI Microbiome Profiles at Any Lab Test Now® test for Cyclospora, helping you and your healthcare provider understand whether a parasite may be contributing to your symptoms.

What is Cyclospora?

Cyclospora (Cyclospora cayetanensis) is a microscopic parasite that can infect the small intestine and cause an intestinal illness known as cyclosporiasis.

One of the biggest frustrations with Cyclospora is that it can be difficult to identify without the right testing—because some labs don’t routinely test for it unless it’s specifically requested.

How Do You Contract Cyclospora?

Cyclospora infection is contracted when someone swallows the parasite, typically by consuming food or water contaminated with stool.

In the U.S., recent outbreaks have been linked to fresh produce. That’s why Cyclospora often shows up in warmer months when people are eating more raw fruits/vegetables, salads, and fresh herbs.

Common Cyclospora Symptoms (What to Watch For)

Cyclospora symptoms can vary, but the most common symptom is watery diarrhea. The CDC also notes Cyclospora can cause frequent, sometimes explosive bowel movements.

Other symptoms may include:

  • Stomach cramps and/or bloating
  • Loss of appetite
  • Weight loss
  • Extreme tiredness (fatigue)
  • Low-grade fever, body aches, headache, nausea, and vomiting (less common)

Timing matters: symptoms often begin about one week after exposure, but can range from as soon as 2 days to 2+ weeks. And without treatment, symptoms can last days to a month or longer and may even come and go.

If you’re experiencing ongoing or intense symptoms, see a healthcare provider.

Why Testing Can Be So Helpful For Suspected Cyclospora

Digestive symptoms like diarrhea, cramping, and fatigue can overlap with many causes—viral illness, food intolerance, bacterial infection, stress, or other parasites.

Cyclospora is a great example of why “guessing” can be frustrating:

  • Not all stool tests automatically include Cyclospora, so it may need to be specifically requested.
  • A targeted stool test can help identify whether a parasite is present, which can support next-step care with your healthcare provider.

Testing Options That Can Help

1) Cyclospora Infection Test 

If Cyclospora is a concern, this is the most focused, most relevant place to start.

Why this test is the best first move:

  • Targets Cyclospora specifically (instead of hoping it’s included on a broader panel)
  • Helps reduce guesswork when symptoms overlap with other GI issues
  • Supports clearer next steps with a healthcare provider—especially since Cyclospora may require specific follow-up care

Best fit for: People with persistent or recurring watery diarrhea, recent travel, or suspected foodborne exposure who want the most direct answer first.

2) GI Microbiome Profile – Basic 

If you want a strong starting point (especially for new or intermittent GI issues), the GI Microbiome Profile – Basic examines 104 markers across 8 GI categories.

It provides personalized info about:

  • Disease-causing organisms (including parasites)
  • Gut microbiome diversity
  • Functional gut health

How it can help: Helpful when symptoms could be caused by multiple factors, and you want a broader view of gut balance alongside pathogen detection.

3) GI Microbiome Profile – Basic, Standard or Advanced (Deeper Dive Options)

If symptoms are ongoing, confusing, or recurrent, upgrading can provide more detail:

  • Basic: 104 markers /8 categories
  • Standard: 121+ markers / 11 categories
  • Advanced: 127+ markers / 13 categories

How it can help: Adds deeper microbiome insight that may be useful when symptoms persist—even after ruling Cyclospora in/out.

4) Gut IQ Complete GI Microbiome Panel (Most Comprehensive)

For the biggest-picture view, the Gut IQ Complete GI Microbiome Panel examines 200+ markers across 16 GI categories and includes diet and exercise recommendations based on your profile.

How it can help: Great if you want a “full dashboard” look at GI wellness while also investigating possible infection-related symptoms.

Take The Next Step: Get Answers and Take Control

If GI symptoms are lingering, don’t stay stuck in uncertainty. Start with the Cyclospora Infection Test, then consider a microbiome panel if you want a broader gut-health view.

Find your nearest location and ask about Cyclospora testing today. Take Control Of Your Health!