Below is an instruction from Human. Write a response.
    ### Instruction:
    How to diagnose Parasites - Scabies ?
    ### Response:
    Diagnosis of a scabies infestation usually is made based upon the customary appearance and distribution of the the rash and the presence of burrows.
    
Whenever possible, the diagnosis of scabies should be confirmed by identifying the mite or mite eggs or fecal matter (scybala).
    