The recovery period for frontal lobe injury is generally six months. There are many causes of frontal lobe injury, the most common being cerebrovascular disease, followed by inflammatory diseases such as viral encephalitis, other brain tumors, traumatic brain injury, etc. The main symptoms of frontal lobe injury are usually higher cognitive dysfunction and abnormal mental behavior. Because brain cells are non-renewable and once neuronal necrosis occurs, it is no longer reversible, so the frontal lobe has been determined to have suffered damage and necrosis and cannot recover its function. The recovery and improvement of clinical symptoms of patients mainly rely on the compensation of surrounding cells, and six months is the maximum period of such compensation, if the function does not return to normal after six months, there will be sequelae.