Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Parasites - Enterobiasis (also known as Pinworm Infection) ?
    ### Response:
    A person infected with pinworm is often asymptomatic, but itching around the anus is a common symptom. Diagnosis of pinworm can be reached from three simple techniques. The first option is to look for the worms in the perianal reqion 2 to 3 hours after the infected person is asleep.
    