Shoulder pain is very common in adults, it could be a pain in the shoulder bone, the shoulder joint or it could be a symptom for another condition, and this is known scientifically as a Referred Pain. So Let’s Learn More About Most Common Cause Of Shoulder Pain..

Different Causes For Your Shoulder Pain

 Most Common Cause Of Shoulder Pain

The Human Shoulder Anatomy

The Human Shoulder Anatomy

The Human Shoulder Anatomy

Shoulder consists of :

  • Collar bone ( clavicle ).
  • Shoulder blade ( scapula ).
  • Acromion
  • The upper arm bone ( humerus).
  • 4 shoulderjoints.
  • Tendons.
  • Ligaments.
  • Bursa.
  • Muscles.
  • Rotator cuff.

Shoulder joint is the most mobile joint in your body, it has a wide range of motion and rotation, and it consists of 4 joints.

What Is The Most Common Cause Of Shoulder Pain?

11 problem can Cause Shoulder Pain

Shoulder dislocation :

  • It’s when your shoulder ball of your upper arm come out of its normal position.
  • It usually comes with a severe shoulder pain and the inability of moving your shoulder at all.
  • It requires a rapid medical help.

  • Rotator cuff injury :

Rotator cuff injury

Rotator cuff injury

The rotator cuff is a small group of muscles that controls the shoulder joint rotation and stabilizes it.

Muscle tears in the rotator cuffarea could lead to a shoulder pain and difficulty of raising your arm above your head, like combing your hair.

It requires a physical therapy, which improves the flexibilityand the strength of those muscles.


Frozen shoulder :

Frozen shoulder

Frozen shoulder


  • There is a soft tissue that covers the shoulder joint, its deepest layer is called the capsule.
  • The frozen shoulder is a capsule inflammation and fibrotic adhesions that will limit your shoulder movement.
  • It causes a severe shoulder pain and stiffness, and it makes you lose your shoulder function.
  • It requires medical help.

Shoulder arthritis :

It’s caused by a wear and tear process leading to the deterioration of the shoulder joint causing shoulder pain. It’s also called degenerative joint disease.

  • Rheumatoid arthritis :

It’s  an autoimmune disease causing chronic inflammatory disorder that could affect any joint in your body, and so it can affect your shoulder joint.

  • Septic arthritis :

It’s caused by an infection of the shoulder joint with germs. It causes shoulder pain, swelling, redness, warm to the touch feeling, and if it comes with a fever, so seeing a doctor is a must.

Sprains and strains of shoulder :

First let’s see the difference between a sprain and a strain..

sprain : is for ligaments overstretching or tearing, while strain : is for muscle or tendon stretching or tearing. So any of the two kinds of stretching or tearing could cause a shoulder pain if it occurs to your shoulder.

Shoulder tendinitis :

Shoulder tendinitis

Shoulder tendinitis


  • Shoulder tendons is a tough cord of tissues that attach the muscles to the bones.

  • It’s  a kind of inflammation in shoulder tendons caused by over using of your shoulder.


Shoulder bursitis :

Bursae are small sacs of fluid thatcushion the outside of any joint to make sure that ligaments and tendons glide smoothly over your shoulder joint.

  • It’s an inflammation of bursae which is painful, causes swollen and redness.
  • If it comes with a fever, you should go visit your doctor.

Shoulder referred pain :

Shoulder referred pain

Shoulder referred pain

It’s an unexplained shoulder pain that comes with other symptoms elsewhere in your body. It could be :

  • Gallstones: Mostly right shoulder pains accompanied with neck pains and frequent headaches are symptoms for having a problems in your gallbladder.
  • Ruptured ovarian cyst: as weird as it might sounds but ovarian cysts actually can cause an aching lower back that might spread up to the shoulders.
  • Pneumonia: which is a bacterial infection in the lungs that leads your lungs to become inflamed causing shortage in breathe, fever, cough, chest pain as well as shoulder pain .
  • Heart disease, especially when it’s felts in the left shoulder, and it could be caused by a heart attack or blood vessels inflammation nearby the heart.
  • Lung cancer: a little less than half people with lung cancer develop some sorts of bone cancer and of course shoulder bones are the nearest to the lungs so it will have the first symptoms and effect, it’s either that or even the lung cancer didn’t spread to the shoulder itself but still affecting the blood circulation in the near area causing severe shoulder pain.


Shoulder tumor :

It varies in symptoms, as it might be a bone cancer or a soft tissue cancer. And it might even be just a benign shoulder tumor that can be removed surgically as it often is as painful as the cancerous cells.