Mi fa male il dito.

Mi means to me. In Italian, pain is often expressed with a structure like something hurts to someone.

So:

• mi = to me
• fa male = hurts / causes pain
• il dito = the finger

Literally, the sentence is something like The finger causes pain to me, but in natural English we say My finger hurts.

Fa male comes from the expression fare male, which means to hurt, to cause pain, or to be painful.

In this sentence:

• fa = does / makes (third-person singular of fare)
• male = badly / pain in this expression

Together, fa male is best understood as a fixed phrase meaning hurts.

Examples:

• Mi fa male la testa. = My head hurts.
• Ti fa male il piede? = Does your foot hurt?

Because the verb agrees with il dito, which is the subject of the sentence.

• il dito = the finger → singular, third person
• so the verb is fa = it does / it hurts

Italian verbs have to agree with the subject, just like in English:

• Il dito fa male. = The finger hurts.
• Le dita fanno male. = The fingers hurt.

So fa is used because dito is singular.

With body parts, Italian usually uses the definite article (il, la, i, le) instead of a possessive like mio / mia, especially when it is already clear whose body part it is from the pronoun.

So:

• Mi fa male il dito literally uses the finger
• but the mi already tells us it is my finger

This is very common in Italian:

• Mi lavo le mani. = I wash my hands.
• Mi fa male la schiena. = My back hurts.

Using mio is possible in some contexts, but here it usually sounds less natural.

No. If you use a noun like dito with mio, you normally also need the article:

• il mio dito

But in this kind of sentence, Italian usually prefers il dito rather than il mio dito.

So the most natural version is:

• Mi fa male il dito.

Mi fa male il mio dito is grammatically possible, but it sounds unusual unless you want special emphasis or contrast.

Both are possible:

• Mi fa male il dito.
• Il dito mi fa male.

They mean basically the same thing, but the emphasis changes slightly.

• Mi fa male il dito can sound more natural when you are introducing the painful thing at the end
• Il dito mi fa male puts more emphasis on the finger

Italian word order is often more flexible than English, especially with pronouns like mi.

Yes. In grammatical terms, il dito is the subject, because it is the thing that fa male.

That can feel strange to English speakers, because English usually says:

• My finger hurts

But Italian structures it more like:

• The finger hurts to me

So:

• mi = indirect object (to me)
• il dito = subject (the finger)

In fare male, male is part of a set expression. It is not acting like a normal adjective that changes form.

That is why it stays male:

• Mi fa male il dito.
• Mi fanno male le dita.

Even when the subject becomes plural, male does not change. The verb changes (fa → fanno), but male stays the same.

You would say:

• Mi fanno male le dita.

Changes:

• fa → fanno because le dita is plural
• il dito → le dita = the fingers

So the pattern is:

• singular: Mi fa male il dito.
• plural: Mi fanno male le dita.

Yes, it is a very natural and common way.

Another common way is:

• Ho male al dito. = My finger hurts / I have pain in my finger.

Both are used, but they are structured differently:

• Mi fa male il dito. = My finger hurts
• Ho male al dito. = I have pain in my finger

A learner will hear both.

Usually, yes, but it can also mean toe in some contexts.

If you need to be specific, Italian can say:

• dito della mano = finger
• dito del piede = toe

But by itself, il dito often means finger unless the context suggests otherwise.

Yes. Il dito is singular, so it means one finger.

If you want to specify which finger, you can add more detail, for example:

• Mi fa male l’indice. = My index finger hurts.
• Mi fa male il pollice. = My thumb hurts.

So il dito is general, but it can be made more specific if needed.