- There may be very few burrows, even though the patient has widespread itching.
- The distribution of the infestation is characteristically the fingers, wrists, nipples, abdomen, genitalia, buttocks, and ankles.
- Close personal contact is required for infestation to occur - for example, within a family, through infants in playgroups, and through regular nursing of elderly patients.
- Itching may persist even after all mites have been eliminated; itching papules on the scrotum and penis are particularly persistent.
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