Many American soldiers who are returning from Iraq and Afghanistan with traumatic brain injuries are also suffering from other conditions which make their rehabilitation even more difficult, it is reported.
Nine out of ten Iraq and Afghanistan veterans return with some form of pain, according to experts speaking at the American Pain Society's annual scientific meeting.
Furthermore, around six out of ten are said to be experiencing significant pain.
Dr Michael E Clark, clinical director of the Veteran Administration's largest pain management and rehabilitation programme in Tampa, said veterans are returning with a complicated set of problems that includes "cognitive issues, deep emotional impacts and acute and chronic pain".
He went on to say that these issues "make effective pain treatment outcomes far more difficult to achieve".
Meanwhile, it has been reported that individual's who suffer traumatic brain injuries may be at an increased risk of developing Alzheimer's or Parkinson's disease.
In an article for injuryboard.com, Paul Napoli also pointed out that short-term effects of such an injury can include changes to motor functions and memory, as well as a potential impact on senses such as taste and smell.
News from Serious Law, specialist traumatic brain injury solicitors