Translation of "Bruising" in Japanese

Do you have any unexplained bruising or bleeding?

説明がつかないあざや出血はありますか？

However he wasn't seriously hurt and got away with light bruising.

しかし彼に大きなけがはなく、軽い打撲傷で済んだ。

This is a bruising information war. At this rate we'll never come out on top. We've got to replace our CIO.

このままでは熾烈な情報戦に勝てない。ＣＩＯの首を挿げ替えよう。