Theepidemiologyofbenignprostatichyperplasia(BPH)andmalelowerurinarytractsymptoms(LUTS)hasevolvedconsiderablyduringthepastseveralyears.ThetermLUTSdescribesadistinctphenotypeandallowsforabroadepidemiologicdescriptionofurinarysymptomsatapopulationlevel.Althoughitisbecomingthepreferredtermforstudyingurinarysymptomsinpopulations,LUTS