Dr Dave Rosser, of Birmingham's Queen Elizabeth Hospital, where she is being treated, said Malala,doing well,and able to stand up for the first time.
Speaking outside the hospital on Wednesday, Dr Rosser said the lateral part of Malala's brain had been grazed when she was shot in the head by a Taliban gunman.
"There is certainly physical damage to the brain but at the moment we are not seeing any deficit in terms of function. She is able to understand and write," he said.
He added that doctors' main cause of concern was a possible infection in the bullet track.