～にけがをする versus ～をけがする


> 私は左手にけがをした。  
>  私は左手をけがした。

Are both correct?




They are both correct.

As you can see in [this J-J dictionary
entry](https://kotobank.jp/word/%E6%80%AA%E6%88%91-489585#E5.A4.A7.E8.BE.9E.E6.9E.97.20.E7.AC.AC.E4.B8.89.E7.89.88),
[怪我]{けが} can be _a noun_ and _a する-verb_ , so you can say for example:

> 「彼は事故で腕 **に** 怪我 **を** した。」(← 怪我 is a noun)  
>  「彼は事故で腕 **を** 怪我した。」(← 怪我 is a suru-verb)  
>  "He injured his arm in an/the accident."

The only difference that I can feel is... the latter sounds just a little bit
more casual/less formal than the former.




They are both correct.

As you can see in [this J-J dictionary
entry](https://kotobank.jp/word/%E6%80%AA%E6%88%91-489585#E5.A4.A7.E8.BE.9E.E6.9E.97.20.E7.AC.AC.E4.B8.89.E7.89.88),
[怪我]{けが} can be _a noun_ and _a する-verb_ , so you can say for example:

> 「彼は事故で腕 **に** 怪我 **を** した。」(← 怪我 is a noun)  
>  「彼は事故で腕 **を** 怪我した。」(← 怪我 is a suru-verb)  
>  "He injured his arm in an/the accident."

The only difference that I can feel is... the latter sounds just a little bit
more casual/less formal than the former.

