What is arm and leg weakness (unilateral)?
A person with arm and leg weakness (unilateral) has muscle weakness on one side of the body. Arm and leg weakness can be caused by malfunction of part of the brain, spinal cord, or spinal nerves. All of these structures play a role in stimulating the muscles to move the arms and legs.

What are the symptoms of arm and leg weakness (unilateral)?
Associated symptoms of arm and leg weakness (unilateral) vary with the underlying cause.

How does the doctor treat arm and leg weakness (unilateral)?
Treatment for arm and leg weakness (unilateral) depends on the underlying cause.