back of the knee; area behind the knee
Anatomical term for the popliteal region; used in everyday contexts as well as medical ones.
The back of my knee hurts, so I can't sit in seiza.
I do a stretch for the back of the knee every day.
Standard kanji spelling.
Mixed kanji-kana spelling, also common.
Compound of 膝 (ひざ, 'knee') and 裏 (うら, 'back/reverse side').