NO. You are expected to LEAVE ON YOUR UNDERWEAR (as in underpants) when you receive a massage. A professional therapist will know how to drape you with the sheet/blanket so that only the part of your body being worked on is exposed. Swedish massage is primarily for relaxation but that does not mean you aren't being worked on by a professional therapist.
No, you do not.
You leave your underwear on.
Yes you can be nude for a massage.
Nope.
You do not have to be nude. And, in fact, it is illegal to be nude during a massage in the US. You may be disrobed, which means having all your cloths off. But, you are covered very professionally with a drape so no private anatomy is exposed.
You leave your underwear on during massage. When I've had a massage I've always been naked.
Generally you are nude, but you can wear underwear, especially for women who are menstruating.
There is no such thing. During a professional massage, you leave on your underwear and you are draped modestly with a sheet and blanket.
A swedish massage is the most common massage. It is what you typically get to relax.
Swedish massage is the most common type of Massage.
In the US, there is no such thing as a nude massage. It is illegal in all 50 states. You must be covered with a sheet or towel and are never nude. You may, however, be completely disrobed and covered with a sheet or towel. That is how most people get their massages. And, we never call it nude, or naked!
A body massage done in the Swedish style.