After receiving reconstructive surgeries in the United States, she pursued a career as a nurse's aide and shared her experiences to educate others about the consequences of nuclear warfare.

[1][2] She was approximately two miles from the bomb's hypocenter and suffered severe burns on over a quarter of her body, including her face, chest, arms, and hands.

[1] In 1955, she was selected as one of 25 young women, later known as the "Hiroshima Maidens," to travel to the United States for reconstructive surgeries arranged by Norman Cousins, a journalist and peace activist.

She addressed audiences in schools, international organizations, and legislative settings, including a U.S. Senate subcommittee in 1980, where she described the health impacts of nuclear war.

[1] Sasamori spent her later years in Marina del Rey, California, and remained active in peace advocacy until her death there on December 15, 2024, at the age of 92.