How do you say how is your neck in French?

There are a few ways to say "how is your neck" in French, depending on the context and level of formality:

Formal:

* Comment va votre cou? (Most literal translation)

* Avez-vous des douleurs au cou? (Do you have neck pain?)

Informal:

* Comment va ton cou? (Informal, you'd use this with someone you know well)

* T'as mal au cou? (Slang, very informal)

To inquire about the general health of the neck:

* Comment se porte votre cou? (How is your neck doing?)

It's important to consider the context and your relationship with the person you're speaking to when choosing the best phrase.