The Manchester lightweight sustained the injury along with a fractured ankle when he confronted burglars in a neighbour???s back garden in December.
Crolla was hit over the head with a concrete slab in the attack and was forced to call off January???s world title clash with WBA champion Richad Abril.
Trainer Joe Gallagher said Crolla was ???lucky to be alive??? following the attack and there were fears that the 28-year-old could be forced to retire due to his injuries.
However, Crolla, who has won 29 victories from 35 contests, confirmed on Twitter that he has been given the all clear to return.
He tweeted: ???Like to say a huge thank u to @mrjohnleach who???s one of the top neurosurgeons who has reviewed my brain scans today and I???m made up that there???s no permanent damage from December and I???ll be fine to box on.”