Mateus Facio, 21, was having a great time near Rio de Janeiro. He was out with his college buddies when something struck his head.

There was some blood, but one of his friends was a doctor, and he managed to stop the bleeding and iced the injury.

I thought it was a stone, something like that. It was like the sound of an explosion, when a bomb goes off, but inside my head. The bleeding stopped, we left, I took a shower and went out partying.

Then Facio and his friends took the party 200 miles away to Juiz de Fora, spent the night there and drove back to Rio de Janeiro so Facio could get back to work the next day.

Three days after the initial pain in his head, Facio worked all day, but his arm was feeling funny, spasming, and going numb.

On day four, Facio went to the doctor.

It turns out the whole time he was partying, there was a bullet lodged in his brain.

He was rushed to emergency surgery, where over the next two hours, doctors worked to remove the bullet.

His neurosurgeon, Flavio Falcometa, said,

Part of the bullet penetrated his brain which caused compression in that area and led to his arm's involuntary movements.

If it had ended up a few millimeters from where it did, it could have caused much more serious damage and left his arm or one side of his body paralyzed. It was very risky for the patient but we believe that in 20 to 30 days he will be able to continue with his normal life.

Facio is currently recovering at home with his friends.

No word on when the party starts, but with this group, it's probably tonight.

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