Ito drew the cover of Mucc's 2002 album Hōmura Uta. This story ran for 13 years and was later serialized as Tomie. In 1987, he submitted a short story to Monthly Halloween that won an honorable mention in the Kazuo Umezu Prize (with Umezu himself as one of the judges). He continued to draw as a hobby until he became a dental technician in 1984, where he struggled to find a balance between the two.

Ito began to draw manga at the age of 4, taking inspiration from the works he read in magazines. In the house where he lived, the bathroom was at the end of an underground tunnel, where there were spider crickets such experiences were later reflected in his works. He grew up in the countryside, in a small city next to Nagano. He began his experience in the horror world at a very young age, with his first manga being Mummy Teacher by Kazuo Umezu his two older sisters read Umezu and Shinichi Koga in magazines, and consequently, he began reading them too. Junji Ito was born on Jin Sakashita, now a part of Nakatsugawa, Gifu. His manga has been adapted to both film and anime television series, including the Tomie film series and both the Junji Ito Collection and Junji Ito Maniac: Japanese Tales of the Macabre anime anthology series.

Ito's work has developed a substantial cult following, and Ito has been called an iconic horror manga artist.

Some of his most notable works include Tomie, a series chronicling an immortal girl who drives her stricken admirers to madness Uzumaki, a three-volume series about a town obsessed with spirals and Gyo, a two-volume story in which fish are controlled by a strain of sentient bacteria called 'the death stench.' His other works include The Junji Ito Horror Comic Collection, a collection of his many short stories, and Junji Ito's Cat Diary: Yon & Mu, a self-parody about him and his wife living in a house with two cats. Junji Ito ( Japanese: 伊藤潤二, Hepburn: Itō Junji, born July 31, 1963) is a Japanese horror manga artist.

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