Parasitic infection is a disease caused by parasites that invade the human body. Parasitic infection can be checked by routine stool test, medical imaging equipment, and also by consulting with a doctor to decide the test method according to the specific symptoms. 1. Stool test: To diagnose parasitic infection by observing whether there are eggs and larvae of parasites in the stool under microscope. 2. Medical imaging equipment examination: Liver worm can be examined by spiral CT, ultrasound, nuclear magnetic resonance and other imaging examinations, which can clarify whether there is any parasite infection. 3. Other: Combine with specific symptoms to decide the examination method, for example, Trichinella infection may have the symptom of myalgia, which can be confirmed by muscle biopsy. After being infected with parasites, you need to go to the hospital for treatment in time. In addition, you should pay special attention to dietary hygiene in your daily life, don’t drink raw water, don’t eat raw seafood and meat, and pay attention to washing hands before meals and after going to the toilet.