"Coprotest" is a device used for parasitological examination of the stools that has been marketed in Brazil with no previous literature support. Therefore, we decided to evaluate the usefulness of the procedure using "Coprotest", comparing it with the routine methods by Hoffman et al., Faust et al., and Rugai et al. Taking into consideration only positive samples, we observed the following figures, according to each technique: Hofmann et al.--98 (47.34%); Faust et al.--119 (57.48%); Rugai et al., only for larva detection--21 (10.14%); "Coprotest"--115 (55.55%). We concluded that "Coprotest" in addition to its operational qualities, has the merits that allow its use together with other techniques for parasitosis diagnosis. Nevertheless it has not modified the previous situation, since more than one technique must still be used, as we have noted for detection of Strongyloides stercoralis larvae in this instance.