Shoulder Pain: 11 Common Conditions and Causes (2024)

Shoulder pain, stiffness or weakness can makeit difficult to carry out everyday tasks, like reaching for something on a high shelf, driving a car or even brushing your hair.


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Figuring out what’s wrong with your aching shoulder is the first step toward making it better. Unfortunately, there’s a hefty list of potential causes. (Your shoulder is a pretty complicated joint, after all.)

To break down your potential shoulder breakdown, let’s turn to orthopaedic surgeon Mark Schickendantz, MD.

How to tell if shoulder pain is serious

If you have a problem with your shoulder, the much-used joint isn’t exactly shy about sharing the news. But where’s the line between general aches and an injury that might deserve medical attention?

Here are symptoms that often serve as warning signs of a shoulder injury:

  • Sudden and sharp pain.
  • Decreased range of motion.
  • Pain along with swelling, pressure or bruising.
  • Constant pain or pain that continues to worsen.
  • Pain that prevents you from falling asleep or wakes you up.
  • No pain relief after several days of rest, icing and over-the-counter anti-inflammatory medications.

Common conditions that cause shoulder pain

So, what might be causing all this pain in your shoulder? Here are 11 possible reasons for your sudden discomfort.

Rotator cuff injuries

Your rotator cuff often gets talked about like it’s just one thing. In reality, though, it’s a collection of four small muscles and a network of tendons that work together to help you lift and move your arms.

These muscles and tendons work to keep the ball of your upper arm bone in your shoulder socket. It’s a tough job, with inevitable wear and tear, which can lead to:

Rotator cuff tears

This injury is exactly what it sounds like. It’s a tear — either partial or full — of a rotator cuff tendon connected to your arm bone.

Your tendon can tear from a single event, likefalling down on an outstretched arm. It also may deteriorate slowly over time due to a repeated motion. (For example, a plumber who frequently raises theirarms overhead can develop a rotator cuff tear.)

If you experience shoulder pain at night that makes it difficult to fall asleep or jolts you awake, you may have a tear in one or more of your rotator cuff tendons. “Night pain is the hallmark of a rotator cuff tear,” Dr. Schickendantz says.

You also may have this type of injury if you feelpain when lifting your arm overhead (like when brushing your hair) or weakness in your shoulder when trying to lift anything above shoulder level.

Initial treatment typically involves relative rest, application of ice and sometimes the use of over-the-counter (OTC) nonsteroidal anti-inflammatory drugs (NSAIDs). Physical therapy is also frequently prescribed.

Rotator cuff tendonitis

Rotator cuff tendonitis happens when tendons in your joint become inflamed and irritated. The pain usually hits on the front and side of your shoulder. You might also feela little stiffness.

“This condition can occur with activities that involve using your arms overhead, like tennis, yoga or painting a room,” Dr. Schickendantz says. “Often the pain will be worse at rest and improve with activity.”


Treatment typically involves rest, applying ice and taking NSAIDS. Most people recover from tendonitis within a few weeks.

Rotator cuff bursitis

Small sacs of fluid called bursae hold an important job in your shoulder. They provide lubrication and act as cushions to reduce rubbing and friction as your muscles, tendons and bones move around.

Overuse of your shoulder or keeping your joint in an awkward position can aggravate the bursae, leading to the swelling and inflammation that defines bursitis.

The injury often occurs in tandem with tendonitis, with a similar pain and treatment approach. (Lower your chances of dealing with bursitis by using these life tips, stretches and exercises recommended by a physical therapist.)

Shoulder impingement syndrome

If one of the above rotator cuff issues lands on your medical chart, a condition called shoulder impingement syndrome may follow.

Swelling from a rotator cuff injury can lead to lead to rubbing or even a “pinch” of your muscles and tendons threading through the tight space. This impingement can cause considerable discomfort.

Symptoms typically calm down over weeks to months with physical therapy, rest, ice and NSAIDs.

Frozen shoulder

There’s a formal name — adhesive capsulitis — for the painful condition where your shoulder becomes stiff and can’t move. Most people, though, know it by a more descriptive moniker: frozen shoulder.

The condition occurs when the connective tissue in your shoulder’s ball-and-socket joint thickens and stiffens. This makes it difficult to move your arm without a whole lot of pain. The less you move your arm, the more the problem grows.

Eventually, your shoulder feels frozen in place. (Hence, the name.)

While some people develop adhesive capsulitis following an injury, many who’re diagnosed with frozen shoulder cannot recall an injury. It’s also seen more frequently in people with diabetes, Parkinson’s disease and a few other conditions for reasons that aren’t quite clear.

Frozen shoulder can take several months to resolve, even with aggressive treatment. Exercises and stretches that target range of motion in your shoulder also can be useful to keep symptoms at bay.

The onset of stiffness in your shoulder following a period of immobilization, such as using a sling to protect your arm after a fracture, is a different condition than a true frozen shoulder. Post-injury stiffness typically responds quite quickly to physical therapy.

Calcific tendonitis

Another worry with your shoulder? Something called calcific tendonitis.


This condition — which is less common — develops when calcium deposits build up within tendons running through your shoulder. The bigger these deposits grow, the more irritation and pain they cause.

Calcific tendonitis can arise in the face of chronic tendonitis of the rotator cuff. The deposits can typically be seen on X-rays. Treatment usually centers on physical therapy, NSAIDs and steroid injections.

Shoulder osteoarthritis

A deep ache in the back of your shoulder may be a sign of osteoarthritis. This pain follows the deterioration of cartilage, the cushioning material that covers the ends ofyour bones.

As osteoarthritis worsens, stiffness in your shoulder develops to the point where you might lose the ability to reach behind your back. “Patients often say they are unable to scratch their back or thread a belt,” Dr. Schickendantz notes.

Osteoarthritis symptoms develop over time. Forsome people, a shoulder injury from sports or some other activity may kick offa degenerative process that eventually results in osteoarthritis.

But many peoplehave no specific cause — it’s just wear and tear over time.

Treatment for osteoarthritis of the shoulder is similar to treatment for a rotator cuff tear. If the condition is severe, you can undergo shoulder joint replacement surgery, which is similar to joint replacement for hips and knees.

Other forms of shoulder arthritis

While osteoarthritis may be the most common form of shoulder arthritis, there are a few more types that can bring pain. The list includes:

  • Rheumatoid arthritis. This chronic autoimmune disease targets joints in your body, including your shoulder.
  • Post-traumatic arthritis. A shoulder injury may heal, but there can be long-term damage that shows itself later through post-traumatic arthritis.
  • Rotator cuff tear arthropathy. Count this form of arthritis among the potential after-effects of a rotator cuff tear.
  • Avascular necrosis. This painful condition happens when something blocks the flow of blood to your bone tissue. It’s typically caused by a fracture or disease.

When to see your doctor about shoulder pain

Shoulder pain is not uncommon. Given that many injuries above are related to general wear and tear, it’s easy to see why. The joint takes a beating in daily life. That’s just a reality.

But when that pain begins to affect basic activities — such as reaching up to wash your hair — it’s time to get your shoulder checked. A combination of physical therapy, rest and other at-home remedies can often resolve the problem.

“Solutions are available,” says Dr. Schickendantz. “It’s often just a matter of correctly identifying the problem.”

As an expert and enthusiast, I have access to a wide range of information on various topics, including shoulder pain and related concepts. I can provide information and insights based on the available data. However, it's important to note that I am not a medical professional, and my responses should not be considered as medical advice. If you are experiencing shoulder pain or any other health concerns, it is always best to consult with a qualified healthcare provider for an accurate diagnosis and appropriate treatment.

Now, let's discuss the concepts mentioned in the article you provided:

Shoulder Pain, Stiffness, and Weakness

Shoulder pain, stiffness, and weakness can significantly impact everyday tasks such as reaching for objects, driving, or brushing hair. These symptoms can be caused by various underlying conditions or injuries .

Causes of Shoulder Pain

There are several potential causes of shoulder pain. Some common conditions include:

  1. Rotator Cuff Injuries: The rotator cuff is a group of muscles and tendons that help stabilize and move the shoulder joint. Injuries to the rotator cuff, such as tears or tendonitis, can cause pain and limited range of motion.

  2. Shoulder Impingement Syndrome: This condition occurs when the rotator cuff muscles and tendons become irritated or inflamed, leading to pain and discomfort. It can be caused by repetitive overhead activities or shoulder injuries.

  3. Frozen Shoulder: Also known as adhesive capsulitis, frozen shoulder is characterized by stiffness and limited range of motion in the shoulder joint. The exact cause is unknown, but it can develop after a shoulder injury or due to certain medical conditions.

  4. Calcific Tendonitis: This condition occurs when calcium deposits build up within the tendons of the shoulder, leading to inflammation and pain .

  5. Shoulder Osteoarthritis: Osteoarthritis is a degenerative joint disease that can affect the shoulder. It is characterized by the breakdown of cartilage, leading to pain, stiffness, and limited mobility.

  6. Other Forms of Shoulder Arthritis: In addition to osteoarthritis, there are other types of arthritis that can affect the shoulder, such as rheumatoid arthritis, post-traumatic arthritis, and rotator cuff tear arthropathy.

It's important to note that these are just a few examples, and there can be other causes of shoulder pain as well. If you are experiencing shoulder pain or related symptoms, it is recommended to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.

When to Seek Medical Attention

While some shoulder pain can be managed with rest and home remedies, there are situations where it is advisable to seek medical attention. Some signs that may indicate a need for medical evaluation include:

  • Sudden and sharp pain
  • Decreased range of motion
  • Pain accompanied by swelling, pressure, or bruising
  • Constant pain or pain that continues to worsen
  • Pain that prevents you from falling asleep or wakes you up
  • No pain relief after several days of rest, icing, and over-the-counter anti-inflammatory medications .

It's important to remember that this information is not exhaustive, and a healthcare professional can provide a comprehensive evaluation and appropriate guidance based on individual circ*mstances.

I hope this information helps! Let me know if there's anything else I can assist you with.

Shoulder Pain: 11 Common Conditions and Causes (2024)
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