Arm stiffness/tight forearm muscle problem, please help!?

Is there is any his-: Tory of injury or infection of the arm/forearm areas? Tight muscles probably would result from severe scarring, either injury/surgery or infections. An infrequent but bad problem would be a compartment syndrome ( from an injury, compression of a cast) can certainly cause tightness of the forearm. Stiffness of the elbow joint can be from any severe injury to it. Best is you see an orthopod.