The following tests can be used for roundworm infections in children: First, the child is given a routine blood test. If there is roundworm infection, there will be significantly high eosinophils in the blood routine, which is the initial diagnosis of parasitic infection. Second, give the child a timely stool routine. The diagnosis of roundworm eggs in the stool routine will confirm that the child has roundworm disease and can apply deworming medication in a timely manner, such as giving the child albendazole, which is a broad-spectrum insecticide that can effectively kill roundworm infection and can inhibit the development of worm eggs. After the application of albendazole to children, symptoms such as abdominal pain will be significantly relieved.