Profession specialization points

Gameplay Professions
1

So i have mining and jewelcrafting on my main char, spent a lot of points in jewelcrafting but want to change to blacksmithing.

My question is, what happens to my jewelcrafting points? I know il have 0 points in BS but do my JC points stay there and return if i change back to jewelcrafting? or do you have to start from 0 again?

2

Professions and specializations may be re-learned from profession trainers.

Re-learning a profession will not restore previous skill points, which must be re-gained through crafting and gathering. Most missing recipes can be obtained again from their original sources or purchased at the Auction House.