Prima di fare la doccia, prendo un asciugamano pulito.

Because prima di is the normal pattern before an infinitive in Italian.

• prima di + infinitive = before doing something
• prima by itself often means before / earlier / first, but not in this structure

So:

• Prima di fare la doccia = Before taking a shower
• Prima di uscire = Before going out
• Prima di mangiare = Before eating

If you say prima fare, it sounds incomplete or ungrammatical in standard Italian.

Italian often uses fare in expressions where English uses take.

So:

• fare la doccia = to take a shower
• literally, it looks like to do the shower, but that is just how Italian says it

This is very common with everyday activities:

• fare colazione = to have breakfast
• fare una passeggiata = to take a walk
• fare una foto = to take a photo

So even though English says take a shower, Italian normally says fare la doccia.

Italian often uses the definite article where English does not.

So fare la doccia is the standard expression, not normally fare doccia.

This happens a lot with daily routines and body-related actions:

• lavarsi le mani = to wash your hands
• alzare la testa = to raise your head
• fare la barba = to shave

English often leaves the article out or uses a possessive, but Italian frequently uses the article instead.

Because Italian usually drops the subject pronoun when it is clear from the verb ending.

• prendo already means I take
• the ending -o tells you the subject is I

So:

• Prendo un asciugamano pulito = I take a clean towel
• Io prendo un asciugamano pulito is possible, but it adds emphasis or contrast

For example:

• Io prendo un asciugamano, tu prendi il sapone.
  = I’ll take a towel, you take the soap.

In normal speech, the pronoun is often omitted.

Because un means a, so the sentence is talking about a clean towel, not a specific known towel.

• un asciugamano pulito = a clean towel
• l’asciugamano pulito = the clean towel

Use un when introducing something non-specific:

• Prendo un asciugamano pulito. = I take a clean towel.

Use il / l’ when it is specific or already known:

• Prendo l’asciugamano pulito che è sul letto.
  = I take the clean towel that is on the bed.

In Italian, adjectives often come after the noun.

So:

• un asciugamano pulito = a clean towel

That is the most natural word order here.

Many descriptive adjectives commonly follow the noun:

• una casa grande = a big house
• un libro interessante = an interesting book
• un asciugamano pulito = a clean towel

Sometimes adjectives can come before the noun, but that can change the tone, emphasis, or style. For a basic learner, noun + adjective is the safest pattern in cases like this.

It can mean either, depending on context.

The Italian present tense is used for:

• actions happening now
• habitual actions
• general routines

So Prendo un asciugamano pulito could mean:

• I take a clean towel right now
• I take a clean towel as part of my routine / habit

In a sentence like this, many learners will understand it as a habitual or routine action:

• Prima di fare la doccia, prendo un asciugamano pulito.
  = Before taking a shower, I take a clean towel.

That sounds like a normal routine.

Yes. Prima di farmi la doccia is also natural and very common.

Compare:

• Prima di fare la doccia = before taking a shower
• Prima di farmi la doccia = before taking myself a shower / before I take a shower

The version with mi is a bit more explicitly personal, but both are natural in everyday Italian.

You may also hear:

• Prima di docciarmi = before showering

So there are several correct ways to express this idea.

Yes, absolutely.

Both are correct:

• Prima di fare la doccia, prendo un asciugamano pulito.
• Prendo un asciugamano pulito prima di fare la doccia.

The meaning stays basically the same.

The version with Prima di fare la doccia at the beginning puts more focus on the time relationship: before showering.

The version starting with Prendo focuses first on the action: I take a clean towel.

The comma is used because the sentence begins with an introductory phrase:

• Prima di fare la doccia, ...

This is similar to English, where you often put a comma after an opening time expression:

• Before taking a shower, I take a clean towel.

In Italian, the comma here is very normal and helps readability. In short informal writing, people may sometimes omit it, but using it is a good idea.

Yes. Asciugamano is the standard word for towel.

A few useful related words:

• asciugamano = towel
• telo da bagno = bath towel
• accappatoio = bathrobe

So in this sentence, un asciugamano pulito is perfectly natural for a clean towel. If you wanted to be more specific, you could say:

• un telo da bagno pulito = a clean bath towel

Sometimes yes, but the meaning or feel is a little different.

• fare la doccia is the most common general expression for to take a shower
• fare una doccia can be used, but it sounds more like to take a shower / one shower as a single instance

So for everyday routine language, fare la doccia is usually the best choice.

For example:

• Vado a fare la doccia. = I’m going to take a shower.
• Mi faccio una doccia veloce. = I’m taking a quick shower.

Both are possible, but la doccia is the more standard routine expression.