Dr Rie Kaguchi (Miyazaki Prefectural Nursing University) and colleagues have published a Japanese translation of the LMUP (2020 version). It was produced using forwards- and backwards-translation with expert committee discussion and agreement. The translation is published:

Kaguchi R, Hensley J, Takigawa Y, Kotoku Y, Barrett G, Eto H. 2025 Development of a linguistically valid Japanese version of the London Measure of Unplanned Pregnancy (LMUP), a screening tool for assessing unplanned pregnancy Journal of Japan Academy of Midwifery Advance online publication Abstract and full pdf

Psychometric field testing and evaluation of the Japanese translation is planned.