noun
Refers to a bruise caused by a blow or impact. Often used in medical or everyday contexts.
転んで足に打ち傷ができた。
I fell and got a bruise on my leg.
打ち傷には冷やすのが効果的だ。
Cooling is effective for bruises.
Compound of 打ち (uchi, 'striking') + 傷 (kizu, 'wound'). The reading うちきず is a straightforward combination.