Zac Efron’s more prominent jaw isn’t from plastic surgery—it’s the result of a serious accident that broke his jaw and changed how his facial muscles grew back.

What actually happened to his jaw

In 2013, Efron slipped and fell at his Los Angeles home, hitting his chin on a stone fountain corner.

The impact shattered his jawbone so badly that it was wired shut for months, and he needed reconstructive maxillofacial surgery.

He later told interviews that when he came to, his chin bone was “hanging off” his face, and he even said he “almost died” from the trauma.

Why his jaw looks so square now

Because his jaw was immobilized, his masseter muscles (the ones used for chewing) over‑developed to compensate, a condition sometimes called “masseter hypertrophy.”

That muscle growth is what gave him a much wider, more angular jawline years later, which sparked intense “plastic‑surgery” rumors.

How he’s responded to the jaw‑gate rumors

Efron has repeatedly clarified that the change in his jaw is from the break and healing, not elective cosmetic work.

He’s also embraced the shift, leaning into bulkier, more intense roles (like in The Iron Claw), where his harder, more defined face fits the rugged look people now associate with him.

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