Fractures
Forearm bones, the radius and ulna, can break in several ways, such as a slight crack, into pieces, or an open fracture, which protrudes through the skin. Fractures can occur near the wrist (distal end of the bone), in the middle of the forearm, or near the elbow (proximal end of the bone). Symptoms include immediate pain, deformity, swelling, bruising, unable to rotate the arm, and numbness or weakness.
Arthritis 
