Pain in the shoulder in the front aspect along with
arm pain in the front region (known as anterior shoulder
pain) can be due to rotator cuff
injury, injury to labrum, arthritis, bicep tendon injury, shoulder dislocation, thoracic outlet syndrome (TOS), pinched spinal nerves in the cervical spine, fracture of the upper arm bone etc. You need to be examined by an orthopedic specialist and may need X-ray and MRI of the shoulder joint, cervical spine etc for confirmed diagnosis.