The Eternal Breasts (乳房よ永遠なれ, Chibusa yo eien nare), also titled Forever a Woman, is a 1955 Japanese drama film directed by actress Kinuyo Tanaka.

At the same time, she tries to find her voice as a poet, regularly attending a poetry circle, encouraged by her married tutor Hori, whom she loves with a respectful distance.

She undergoes a double mastectomy, which she writes about in a series of widely noticed and prize-winning poems, and tries to live her life as freely as possible and as her illness allows.

She has a short affair with journalist Ōtsuki, who writes about her in a newspaper series before she finally dies.

While Alejandra Armendáriz-Hernández calls it "a daring depiction of female sexuality […] as well as a powerful instance of women's creativity and self-expression",[4] Alexander Jacoby sees the "feminist and progressive" theme of a woman willingly choosing career over marriage obscured by the film's concentration on her illness, thus shying away from the more controversial implications.