Microscopic Examination of Stool for Parasites (Qualitative)

Why This Test Is Done

Your doctor may recommend this test if you have symptoms like persistent diarrhea, abdominal pain, unexplained weight loss, or if you’ve traveled to areas with higher parasite risks. It’s also used to confirm infections in people with known risk factors, like those with weakened immune systems or exposure to contaminated water.

What to Expect Before the Test

No special preparation is needed, but you may be asked to collect a fresh stool sample in a clean container. Avoid using toilet paper or cleaning products in the sample. If you’re taking certain medications, let your doctor know—some may affect the test results.

During the Test

A lab technician will examine your stool under a microscope to look for signs of parasites, such as eggs, larvae, or live organisms. The test is qualitative, meaning it only tells you whether parasites are present or not, not how many.

Possible Results and Next Steps

If parasites are found, your doctor will work with you to determine the type of infection and recommend treatment, which may include prescription medications. If no parasites are detected, further testing or follow-up may still be needed to rule out other causes of your symptoms.