Paralysis affecting only one side of the body.

Muscle weakness on one side of body.

Slight paralysis of the muscles of one side of the body.

Hemiparesis is a condition involving a neurological deficit in which one side of the body has weakness or is partially paralyzed. In hemiparesis, neurological compromise is limited to the hemisphere contralateral to the weakened or partially paralyzed side of the body. The etiology of hemiparesis has been linked to unilateral strokes, transient ischemic attacks, migraines, head injuries, diabetes mellitus, tumors, infections, demyelinating conditions, and hereditary diseases (Family Practice Notebook, 2001). The incomplete paralysis or weakness may present as limb rigidity, spasticity, or both. Weakness and spasticity are usually the main causes of limb deformities associated with hemiparesis. This condition may involve ataxia and gait disorders.

Partial paralysis; weakness on the right or left half of the body.

Weakness on one side of the body. Hemiparesis and hemiplegia (paralysis on one side of the body) commonly occur as a result of a stroke. Weakness or paralysis may affect only an arm, a leg, the face, or one entire side of the body and face. A person who has a stroke in the left hemisphere of the brain may exhibit right-sided paresis or paralysis; a person who has a stroke in the right hemisphere may have problems with the left side of the body.

Paralysis affecting the muscles of one side of the body. This most commonly follows a stroke and occurs when parts of the brain serving motor function on the opposite side of the body are damaged.

Weakness of one side of the body, including one arm and one leg.

Muscular weakness or partial paralysis occurs on one side of the body.