Translation guide
The first menstrual period, a key biological event. In Japanese, this is most commonly expressed with the medical/formal term 初潮 (しょちょう) or the more everyday 初経 (しょけい).
Referring to the first occurrence of menstruation in a person's life, in a neutral or clinical context.
The most standard and widely understood term for 'first menstruation'. Used in medical contexts, health education, and everyday conversation.
When did you get your first period?
A slightly more clinical or formal term than 初潮, but also common. Often used in medical records or formal writing.
A plain, everyday phrase meaning 'first period'. 生理 is the common word for menstruation. Suitable for casual conversation.
Another natural way to say 'first period', emphasizing the experience. Very common in personal narratives.
The average age for first menstruation is 12 years old.
Please fill in your age at first menstruation.
I got my first period when I was in seventh grade.
When I had my first period, my mom celebrated it for me.