Many: There are many causes of back pain but the most common cause is lumbar strain. We need more information to determine the cause. If its effecting his function he should see a medical professional. Good luck.
Answered 3/23/2013
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7 doctors weighed in across 2 answers
A doctor has provided 1 answer
2 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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