Jaw pain or problems opening my mouth after wisdom teeth surgery, is normal? and how can i adjust it?

Stretched.: You had wisdom teeth removed and your jaw hurts. This is because it was stretched open during surgery. Normally the jaw remains closed. Over time the soreness resolves. Make sure you don't smoke it can dry the sockets. Walk daily. Drink fluids. Be well.

Its the swelling: After a tooth is extracted the area swells. Bone is living tissue so it does swell and because of that edema [fancy ten dollar doctor word for swelling] it is harder to open the jaw. It will resolve usually four to five days after the procedure. Ice and anti inflammatory agents are the best solution.