手しゅ術じゅつ跡あとMeanings1nounoperation scar; surgical scarRefers to a scar left after a surgical procedure.手しゅ術じゅつ跡あとがまだ少すこし赤あかい。The operation scar is still a little red.彼かれは腕うでの手しゅ術じゅつ跡あとを隠かくすために長なが袖そでを着きている。He wears long sleeves to hide the surgical scar on his arm.