Doktorica mi je rekla da imam malu upalu, ali da to još nije ozbiljna infekcija.

Doktorica is the feminine form of doctor. It tells you the doctor is a woman.

• doktor = male doctor
• doktorica = female doctor

Since the past participle later in the sentence is rekla (also feminine), everything matches: the speaker is talking about a female doctor.

Mi je rekla means she told me.

Piece by piece:

• mi = to me
• je = is/has here functioning as an auxiliary for the past tense
• rekla = said/told (feminine past participle)

So literally it is something like to me has said, but in natural English we translate it as she told me.

The order may feel unusual because mi and je are clitics in Croatian. Clitics are short unstressed words that usually come very early in the sentence, typically in the second position.

So:

• Doktorica mi je rekla... = The doctor told me...

This is very normal Croatian word order.

Because the subject is doktorica, which is feminine.

In Croatian past tense, the participle agrees with the subject in gender and number:

• rekao = masculine singular
• rekla = feminine singular
• rekli = masculine mixed plural
• rekle = feminine plural

So a female doctor rekla je, while a male doctor would be rekao je.

After verbs of saying, thinking, knowing, etc., Croatian very often uses da + present tense to introduce a reported statement.

So:

• rekla da imam... = said that I have...

This is one of the most common structures in Croatian.

English often uses:

• She said that I had... or
• She said that I have...

Croatian here keeps imam in the present because it refers to the situation as stated by the doctor. This is completely natural in Croatian reported speech.

The sentence has two reported clauses:

• da imam malu upalu
• ali da to još nije ozbiljna infekcija

Croatian often repeats da when two subordinate clauses are linked with ali:

• She told me that I have a small inflammation, but that it is not yet a serious infection.

The repeated da helps keep the structure clear and balanced. It sounds natural and idiomatic.

You could think of it as:

• She told me [that X], but [that Y].

Because mala upala is the direct object of imam.

The verb imati takes an accusative object:

• nominative: mala upala = a small inflammation
• accusative: malu upalu

So both the adjective and the noun must change to accusative singular feminine:

• mala → malu
• upala → upalu

This agreement is very important in Croatian.

Upala usually means inflammation.

So mala upala is literally a small/mild inflammation.

In medical contexts, upala and infekcija are related ideas, but they are not exactly the same:

• upala = inflammation
• infekcija = infection

That is why the sentence contrasts them:

• you have a mild inflammation
• but it is not yet a serious infection

Because ozbiljna infekcija is not a direct object here. It is a predicate noun phrase after biti.

Structure:

• to nije ozbiljna infekcija
• literally: that is not a serious infection

In standard Croatian, predicate nouns after biti are often in the nominative:

• To je problem.
• Ona je doktorica.
• To nije ozbiljna infekcija.

So:

• ozbiljna infekcija stays in nominative, not accusative.

To means that/it and refers back to the medical condition just mentioned — basically the small inflammation or the situation the doctor is talking about.

So:

• ali da to još nije ozbiljna infekcija = but that it is not yet a serious infection

Croatian often uses to in this kind of summary/reference way.

Here još means yet.

So:

• još nije = is not yet

The idea is that it has not reached that stage.

Compare:

• To još nije ozbiljno. = It is not serious yet.
• Još imam temperaturu. = I still have a fever.

So još can mean either still or yet, depending on context. In this sentence, yet is the best translation.

Because the negative form of je is nije.

This is standard in Croatian:

• je = is
• nije = is not

Similarly:

• sam → nisam
• si → nisi
• smo → nismo

So to još nije ozbiljna infekcija simply means that is not yet a serious infection.

Croatian does not have articles like English a/an/the.

So:

• doktorica can mean the doctor or a doctor
• mala upala can mean a small inflammation
• ozbiljna infekcija can mean a serious infection

The exact meaning depends on context.

In this sentence, English naturally uses:

• The doctor told me...
• a small inflammation
• a serious infection

But Croatian does not need separate words for those articles.

Grammatically, doktorica does mean female doctor, but in normal English you would almost always just say the doctor, unless the gender matters.

So the natural translation is:

• The doctor told me...

not usually:

• The female doctor told me...

Croatian marks gender much more openly in many nouns and past-tense forms, but English often leaves that unstated unless it is relevant.

Because Croatian does not always shift tense backward the way English often does in reported speech.

English often does this:

• She said that I had...

Croatian commonly says:

• Rekla je da imam...

This is very natural, especially when the condition is still true or being presented as the content of what the doctor said.

So Croatian reported speech is often more direct in tense usage than English.

Yes, and in many medical contexts blagu upalu may sound more natural.

• mala upala = literally small inflammation
• blaga upala = mild inflammation

A doctor might very naturally say either, depending on style and context. The sentence you were given is correct, but learners should know that blag/blaga/blago is often used for mild in health-related language.

Yes, absolutely.

It shows several very common features of Croatian reported speech:

• past tense reporting verb: rekla
• clitics near the beginning: mi je
• da + present clause: da imam
• another da + present clause after ali
• natural medical vocabulary: upala, infekcija

So this is a very useful sentence pattern to learn:

• X mi je rekao/rekla da...
• Someone told me that...

For example:

• Profesorica mi je rekla da dobro napredujem.
• Mama mi je rekla da dođem ranije.
• Doktor mi je rekao da se odmorim.

It is a very productive structure.