Endoscopy/Colonoscopy This test is a procedure in which a tube is inserted into the mouth (endoscopy) or rectum (colonoscopy) so that the doctor, usually a gastroenterologist, can examine the intestine. This test looks for the parasite or other abnormalities that may be causing your signs and symptoms.
How do I know if I have worms in my intestine?
Symptoms of intestinal worms diarrhea, nausea, or vomiting. gas and bloating. fatigue. unexplained weight loss.
How do doctors diagnose intestinal worms?
Stool tests To diagnose ascariasis, your doctor will examine your stool for the tiny (microscopic) eggs and larvae. But eggs won't appear in stool until at least 40 days after you're infected. And if you're infected with only male worms, you won't have eggs.
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