30. Define sprain.
Sprain : When ligaments are stretched or torn but not with enough force to dislocate the joints. Sprain is caused directly or indirectly by a fall or a blow or knock or jump or slip or slide while walking or running. It is an injury to a joint which results in tearing of ligaments. It is associated with pain and discoloration, swelling and tenderness. In case of severe sprain you are unable to move the affected body part or movement at joint.
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