Sitting in this living room with his hand, arm and leg wrapped in bandages, Yun Qi says it was the right thing to do to help a young girl who was attacked in his Surrey neighbourhood by a dog on Saturday.

Qi, along with his father, wife and two children were on their way out for dinner when they saw two girls and the dog.

"The older girl is [crying] and I, is very dangerous, the dog bite the girl, and pull the girl, a lot of blood, it's very dangerous," he said on Sunday.

"So I get out of the car to get close to dog and when I arrive the dog look at me, it's very [lucky] because the dog drop the girl."

'There's no time to think'

Qi says the dog then attacked him, but his father came to his aide by picking up a bicycle that was on the ground and using it to protect himself from the dog.

He said as his father struggled with the dog, its owner came on the scene, got the dog and took it away. Qi's father was unharmed.

On Sunday, police said the dog was put down with the owner's consent, while Qi says he's unsure how the dog got loose and came to be in the alley.

(CBC)

Officers said the girl was treated in hospital for bite injuries, while Qi is worried about his left hand as he has no feeling in the middle finger.

He will see a specialist on Monday to further assess his injuries.

Yun Qi says he has no feeling in his left hand after he helped a 4-year-old girl escape a dog attack in his neighbourhood. (CBC)

Qi and his wife believe the dog was a Rottweiler, and estimate it was a metre tall.

He says he doesn't consider himself a hero for stepping in to help the girl.

"Actually I haven't think anything," he said. "There's no time to think anything. If I don't get there that girl maybe die.

"As a parent I had to do that. No matter whose children, I had to do it. That's it."

with files from Deborah Goble.