Whether adults need deworming can be decided by symptoms or stool examination, and after parasitic infection is clear, deworming treatment should be carried out in time. 1. Clinical symptoms: Parasite infection may cause loss of appetite, or even abdominal distension and pain, the pain is basically located around the navel or the upper abdomen, which may be irregular and recurring, but can be relieved on its own. Around the anus will be itchy, serious patients may lead to dizziness and nausea, serious and even life-threatening, may even have epilepsy symptoms, should be timely deworming treatment. 2. Laboratory tests: first of all, routine blood tests can appear whether eosinophils are elevated, elevated can assist in the diagnosis of parasitic infection. In addition, we can check whether there are antibodies to the parasites in the body, different parasites have different antibodies in the body, and targeted detection of positive antibodies will improve the detection rate. You can also check for parasite eggs in the stool to determine the type of parasite infection. It is recommended that you seek medical attention as soon as possible for parasitic infections, and that your doctor selects the appropriate deworming treatment for your condition.