What surgery must I have to make my bottom lip normal again after an accident? (Photos)

It appears to me as though a scar revision could be done to improve the scar on your lower lip after your accident.  This would be a fairly minor procedure that could be done in the office.  I would consult with a facial plastic surgeon or plastic surgeon.

It’s possible that you will need a scar revision. There may still be some residual swelling (edema) depending on the time since the trauma. Lips are notorious for swelling after the slightest trauma. I recommend seeking out a fully-trained plastic surgeon and letting him or her examine the lip in person. A scar revision can be performed with some local anesthetic without the need for general anesthesia.