Instagram/@leticiacline

"American Pickers" star Mike Wolfe may be on the mend after a scary car crash ... but his girlfriend, Leticia , has a long road to recovery, according to Wolfe's reps.

Spokespeople for the reality star tell TMZ ... Mike has been released from the hospital, as he wasn't seriously injured during this weekend's crash -- only sustaining some bruising. Instagram/@leticiacline

Leticia wasn't as fortunate, with reps telling us Mike's GF is set to have multiple surgeries next week after breaking her jaw, ribs, and sternum in the collision. She's also suffered a collapsed lung and has a lot of swelling in her spine.

We're told Leticia's doctors are waiting for the swelling to go down before putting her under the knife ... which is why the surgery isn't scheduled u

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