jibe waseo sangcheoreul dasi bogo sodokhaesseo.

집에 uses the location/destination particle 에, which often marks the place someone goes to.

So 집에 오다 means to come home / come to the house.

A few comparisons:

• 집에 오다 = come home
• 집으로 오다 = come toward home / come home
  
  • 으로 can also mark direction, but 집에 오다 is the most common natural expression.
• 집을 오다 is incorrect here because 을/를 marks a direct object, and 집 is not the object of 오다.

So in this sentence, 집에 와서 simply means coming home and then...

와서 is the connective form of 오다 (to come).

It is made like this:

• 오다 → 와서

In this sentence, 와서 connects the action coming home to the next action.

So:

• 집에 와서 = came home and then... / after coming home...

It often gives a sense of natural sequence:

1. came home
2. looked at the wound again
3. disinfected it

Here, -아서/어서 is not really about cause; it is just linking actions in order.

In Korean, when several actions are linked together, it is very common for the final verb to carry the main tense and speech level.

So:

• 집에 와서
• 상처를 다시 보고
• 소독했어

Even though 와서 and 보고 are not explicitly marked as past, the whole sentence is understood as past because the final verb is 소독했어 (disinfected).

This is very normal in Korean. English often repeats tense more clearly, but Korean usually does not need to.

보고 is the connective form of 보다 (to see / look at), using -고.

So:

• 보다 → 보고

In this sentence:

• 와서 links coming home to what follows
• 보고 links looking at the wound again to disinfecting it

The difference in nuance:

• -아서/어서 often connects actions that are closely related in sequence, and sometimes it can also imply cause.
• -고 is a more neutral and / then connector.

So the sentence has a natural flow:

• 집에 와서 = after coming home
• 상처를 다시 보고 = looked at the wound again, and then
• 소독했어 = disinfected it

Using both forms in one sentence is completely natural.

Because 보다 usually takes a direct object, marked by 을/를.

So:

• 상처를 보다 = look at the wound

Here, 상처 is what is being looked at, so it gets 를.

By contrast, 에 usually marks a location, direction, or target in other kinds of expressions. It does not work with 보다 in this way.

So:

• 상처를 다시 보고 = looked at the wound again

Yes. 상처 can mean:

• a physical wound, cut, or injury
• an emotional hurt or psychological scar

In this sentence, because it is followed by 소독했어 (disinfected it), it clearly means a physical wound.

So the context decides the meaning.

다시 means again.

In this sentence:

• 상처를 다시 보고 = looked at the wound again

It is placed before the verb 보고 because it modifies that action.

This means the speaker had already looked at the wound before, and then looked at it one more time.

It could also sometimes be understood more broadly as repeating part of the sequence, but here the most natural reading is:

• came home
• looked at the wound again
• disinfected it

Korean often leaves out things that are clear from context.

So even though English would usually say something like:

• I came home, looked at my wound again, and disinfected it

Korean does not need to say I or my if they are obvious.

That is why the sentence simply says:

• 집에 와서 상처를 다시 보고 소독했어

From context, listeners naturally understand that it is probably:

• I came home
• looked at my wound
• disinfected it

This kind of omission is extremely common in Korean.

The verb 소독하다 means to disinfect.

In this sentence, the object is omitted because it is already obvious from the previous phrase:

• 상처를 다시 보고 소독했어
• looked at the wound again and disinfected it

So the omitted object is understood as the wound.

Korean often drops repeated objects when they are easy to understand.

If you said it more fully, it could be:

• 상처를 다시 보고 상처를 소독했어

But this sounds repetitive, so leaving the second 상처를 out is more natural.

소독했어 is in the casual, non-polite speech level, often called 반말.

It comes from:

• 소독하다 → 소독했어

This style is used with:

• close friends
• younger people
• children
• someone you are very familiar with
• diary-style narration or casual storytelling

If you wanted to say it politely, you could say:

• 집에 와서 상처를 다시 보고 소독했어요.

So the difference is mainly tone and politeness, not basic meaning.

Grammatically, -아서/어서 can sometimes express either:

• because
• and then / after

But in this sentence, the natural interpretation is sequence, not cause.

So:

• 집에 와서 = after coming home / came home and then

It would be strange to interpret it as:

• because I came home, I looked at the wound again and disinfected it

That is not impossible on a purely grammatical level, but it does not fit the situation as naturally. Context strongly favors a sequence of actions.

Yes. The sentence presents the actions in chronological order:

1. 집에 와서 — came home
2. 상처를 다시 보고 — looked at the wound again
3. 소독했어 — disinfected it

This is a very common way Korean strings actions together.

A useful pattern to notice is:

• Verb-아서/어서 + Verb-고 + final verb

This lets the speaker narrate several connected actions smoothly in one sentence.