Skin scraping is a useful diagnostic test that dermatologists often do when presented with pruritic patients to rule out the presence of parasites. This test may confirm an infestation but its sensitivity for ruling it out depends on the type of parasite present and aggressiveness of sampling. Patients presenting with pruritus, erythema, scaling, crusting, alopecia, or a papular/pustular eruption should be scraped to rule out trombiculidiasis, cheyletiellosis, sarcoptic or demodectic mange. The presence of scales, crusts on the hocks, elbows and pinnal margins are prime sites for finding Sarcoptes mites. Primary lesions such as papules and pustules associated with pruritus should be scraped for Sarcoptes spp. or Demodex spp. mites. Alopecic areas with comedones and hyperpigmentation should be scraped for Demodex spp mites. Areas with scaling which are very pruritic should be suspicious for Cheyletiella mites.