This　article　reviews　mushrooms　with　anti-breast　cancer　activity.　The　mushrooms　covered　which　are　better　known　include　the　following:　button　mushroom　Agaricus　bisporus,　Brazilian　mushroom　Agaricus　blazei,　Amauroderma　rugosum,　stout　camphor　fungus　Antrodia　camphorata,　Jew＇s　ear　(black)　fungus　or　black　wood　ear　fungus　Auricularia　auricula-judae,　reishi　mushroom　or　Lingzhi　Ganoderma　lucidum,　Ganoderma　sinense,　maitake　mushroom　or　sheep＇s　head　mushroom　Grifola　frondosa,　lion＇s　mane　mushroom　or　monkey　head　mushroom　Hericium　erinaceum,　brown　beech　mushroom　Hypsizigus　marmoreus,　sulfur　polypore　mushroom　Laetiporus　sulphureus,　Lentinula　edodes　(shiitake　mushroom),　Phellinus　linteus　(Japanese　＂meshimakobu,＂　Chinese　＂song　gen,＂　Korean　＂sanghwang,＂　American　＂black　hoof　mushroom＂),　abalone　mushroom　Pleurotus　abalonus,　king　oyster　mushroom　Pleurotus　eryngii,　oyster　mushroom　Pleurotus　ostreatus,　tuckahoe　or　Fu　Ling　Poria　cocos,　and　split　gill　mushroom　Schizophyllum　commune.　Antineoplastic　effectiveness　in　human　clinical　trials　and　mechanism　of　anticancer　action　have　been　reported　for　Antrodia　camphorata,　Cordyceps　sinensis,　Coriolus　versicolor,　Ganoderma　lucidum,　Grifola　frondosa,　and　Lentinula　edodes.