A renovação mudou por causa da restrição médica.

Not usually. Renovação can sometimes refer to renovation in a broad sense, but in many everyday contexts it means renewal, such as the renewal of a contract, license, membership, or document.

So for an English speaker, this is a potential false friend:

• renovação = often renewal
• reforma = more often renovation/remodeling

In this sentence, renovação is most naturally understood as the renewal.

Portuguese uses definite articles much more often than English. A renovação means the renewal.

Even when English might say just renewal in some contexts, Portuguese often prefers the article:

• A renovação mudou... = The renewal changed...

Here, the speaker is talking about a specific renewal, not the general idea of renewal.

Here mudou means changed, not moved.

The verb mudar can mean:

• to change
• to move (depending on context)

In this sentence:

• A renovação mudou = The renewal changed

That could mean the renewal process, status, conditions, date, or plan changed.

If the meaning were physical movement, the context would usually make that clear.

Both are possible, but they focus on different things.

• A renovação mudou = The renewal changed
  • This sounds more direct and less focused on who caused it.
• A renovação foi mudada = The renewal was changed
  • This is more clearly passive and emphasizes that something/someone changed it.

Portuguese often prefers the simpler active-looking structure where English might choose a passive.

So mudou is natural if the speaker just wants to say that the situation changed, without highlighting the agent.

Por causa de means because of or due to.

In the sentence, de + a contracts to da:

• por causa de a restrição médica → por causa da restrição médica

So:

• por causa da restrição médica = because of the medical restriction

This contraction is very common in Portuguese.

Because in Portuguese, de + a normally contracts to da.

Common contractions include:

• de + o = do
• de + a = da
• de + os = dos
• de + as = das

So:

• da restrição médica = of/from the medical restriction or, in this case, part of because of the medical restriction

You should generally expect this contraction in normal Portuguese.

Because adjectives in Portuguese usually come after the noun.

So:

• restrição médica = medical restriction

This is the normal word order:

• noun + adjective

Also, médica agrees with restrição, which is feminine singular:

• restrição = feminine singular
• médica = feminine singular form of médico

It means something like medical restriction, medical limitation, or restriction for medical reasons, depending on context.

It could refer to:

• a doctor’s restriction
• a health-related limitation
• a medical condition that prevents something

So the phrase is fairly broad. The exact meaning depends on the situation.

No. You could also say things like:

• devido à restrição médica = due to the medical restriction
• em razão da restrição médica = because of / as a result of the medical restriction

These alternatives are usually more formal than por causa da.

So:

• por causa da = common, neutral, everyday
• devido à = more formal
• em razão da = formal

Because Portuguese often does not need subject pronouns when the subject is already clear.

Here the subject is explicitly stated:

• A renovação mudou...

So adding ela would be unnecessary:

• A renovação mudou... is the natural version

Portuguese commonly omits pronouns unless they are needed for emphasis or clarity.

Yes, they are important for both spelling and pronunciation.

• renovação
• restrição
• médica

The accents help show the stressed syllable and, in some cases, vowel quality. Also, -ão is a very common ending in Portuguese and has a nasal sound.

For a learner, it is worth noticing:

• renovação ends in -ção
• restrição ends in -ção
• médica has stress on mé

So the accents are not optional—they are part of the correct written form.