8 Major Causes of Shoulder Pain-
- Trauma
 - Arthritis
 - Shoulder Joint Sprain
 - Frozen Shoulder
 - Tendonitis
 - Bursitis
 - Rotator Cuff Impingement
 - Posterior Joint Capsule Contracture.
 
1. Trauma-
Trauma is Caused by-
- Auto Accident
 - Work Accident
 - Slip And Fall On Slippery Surface
 - Domestic Injury
 
These Accidents/Injuries Can Result in-
a. Tendon Tear
b. Rotator Cuff Tear
c. Fracture of Shoulder Joint-
Shoulder Joint Fracture Includes Fracture of the following Bones-
- Humerus
 - Scapula (Glenoid Cavity)
 - Acromion
 - Clavicle Close to the Acromio-Clavicular Joint.
 
d. Dislocation Of Shoulder Joint-
Shoulder Joint Dislocation Is Separation Of Humerus In one of the following Direction-
- Anterior
 - Posterior
 - Inferior
 - Superior
 
e. Labral Tear-
Tear Of The Rim Is Known As Labral Tear
3. Shoulder Joint Sprain
Shoulder Joint Sprain Is Caused By-
- Ligamental Tear
 - Inflammation Of The Ligament
 - Inflammation Of Shoulder Joint Capsule
 - Partial Or Complete Tear Of The Ligament
 
4. Frozen Shoulder
- Frozen Shoulder is Caused by Inflamed Shoulder Joint Capsule.
 - Leads to severe Joint Movement Restriction
 - Extremely Stiff Joint
 - It is triggered By Systemic Disorders.
 
5. Shoulder Tendonitis
- Tendonitis Is Inflammatory Condition Of Tendon.
 - Tendonitis May Result From Tendon Injury. Tendon Injury Causes Laceration, Partial Tear Or Complete Tear Of Tendon.
 - Tendonitis Is Also Often Seen With Degenerative Joint Disease.
 
6. Shoulder Bursitis
- Inflammation Of Bursa Is Known As Bursitis.
 - Bursitis Causes Severe Pain With Joint Movement As Well As Movements Of Tendon And Ligament. Inflammation Stimulates Sensory Nerve Fibers Resulting In Severe Pain.
 
7. Rotator Cuff Impingement
- Rotator Cuff Impingement Is Caused By Squeezed Of The Rotator Cuff During Upper Arm Abduction At Shoulder Joint.
 - Rotator Cuff Impingement May Result In Bursitis And Tendonitis When Bursa Or Tendon Is Part Of The Pinch.
 
8. Posterior Joint Capsule Contracture
Inflammation and Thickening of the shoulder capsule.
