אחרי הניתוח היא צריכה לנוח.

אחרי means after.

In this sentence, it introduces a time phrase: אחרי הניתוח = after the surgery.

It can be followed by:

• a noun: אחרי הניתוח = after the surgery
• a full clause: אחרי שהיא תסיים = after she finishes

A slightly more formal alternative is לאחר.

The ה־ is the Hebrew definite article, meaning the.

So:

• ניתוח = surgery / an operation
• הניתוח = the surgery / the operation

In this sentence, the speaker is talking about a specific surgery, not surgery in general.

So:

• אחרי הניתוח = after the surgery
• אחרי ניתוח could mean after surgery more generally, but it sounds less specific.

ניתוח most often means surgery or an operation in medical contexts.

In other contexts, it can also mean analysis, depending on the subject. For example, in academic or business Hebrew, ניתוח can mean analyzing data or a text.

But here, because the sentence continues with she needs to rest, the meaning is clearly surgery / operation.

Yes, Hebrew can sometimes leave subject pronouns out, but here היא is very helpful.

The form צריכה by itself only tells you that the subject is feminine singular. That could mean:

• I need (said by a woman)
• you need (to a woman)
• she needs

So adding היא makes it clear that the meaning is she.

That is why היא צריכה is very natural here.

Because the subject is היא, which is she, so the word has to match a feminine singular subject.

Forms:

• הוא צריך = he needs
• היא צריכה = she needs
• הם צריכים = they need
• הן צריכות = they need (feminine)

So צריכה agrees with היא.

It behaves a little differently from a normal verb.

צריך / צריכה / צריכים / צריכות is very commonly used to mean need to or have to, but grammatically it behaves more like an adjective or participle in the present.

That is why it changes for gender and number:

• אני צריך = I need (male speaker)
• אני צריכה = I need (female speaker)
• היא צריכה = she needs

So in this sentence, היא צריכה לנוח means she needs to rest or she has to rest.

Usually צריכה here means needs to or has to.

So היא צריכה לנוח can be understood as:

• she needs to rest
• she has to rest

It is stronger than a mild suggestion. If you specifically wanted should, Hebrew would often use other wording depending on context.

So the basic feel here is necessity, not just advice.

לנוח is the infinitive form, meaning to rest.

The ל־ here is part of the infinitive, similar to English to in to rest.

So:

• נחה = she rested / is resting, depending on context
• לנוח = to rest

After צריך / צריכה, Hebrew normally uses an infinitive:

• היא צריכה לנוח = she needs to rest
• הוא צריך לאכול = he needs to eat
• אנחנו צריכים ללכת = we need to go

Yes.

The sentence אחרי הניתוח היא צריכה לנוח is perfectly natural, and it puts the time expression first: After the surgery, she needs to rest.

You could also say: היא צריכה לנוח אחרי הניתוח

That is also natural and means the same thing.

The difference is mostly about emphasis:

• אחרי הניתוח... puts the timing first
• היא צריכה לנוח... puts the person/action first

A common transliteration is:

Akharei ha-nituach hi tzricha lanuach.

A rough pronunciation guide:

• אחרי = ah-kha-REI
• הניתוח = ha-ni-TU-akh
• היא = hee
• צריכה = tzri-KHA
• לנוח = la-NU-akh

The kh sound is the throat sound heard in words like Chanukah or the German Bach.

Because Hebrew usually does not use a present-tense form of to be.

English says:

• She is tired
• She is ready

But Hebrew often simply says:

• היא עייפה
• היא מוכנה

The same kind of thing is happening with היא צריכה לנוח. Hebrew does not need an extra present-tense is here.

So the structure is normal Hebrew, not missing anything.