Iyalin Oxyuridae suna nufin dangin taxonomic na parasitic nematodes (roundworms) waɗanda aka fi sani da "pinworms". Wadannan tsutsotsi yawanci ƙanana ne, tsayin su na milimita kaɗan ne, kuma ana samun su a cikin sassan narkar da dabbobi daban-daban, ciki har da mutane. Iyalin sun haɗa da nau'o'i da yawa, irin su Enterobius da Oxyuris, kuma nau'in da ke cikin waɗannan jinsin na iya haifar da al'amurran kiwon lafiya daban-daban a cikin masaukin su.