patient able to play and lift his daughter after receiving treatment for shoulder impingement

What is shoulder impingement?

Shoulder impingement syndrome is a common cause of shoulder pain. It happens when the tendons and soft tissues in your shoulder get irritated or pinched, especially with frequent overhead movements like swimming, tennis, volleyball or even lifting objects.

Repetitive motions can cause these tissues to rub against nearby bones, leading to discomfort and inflammation. It can also happen after a minor injury, like falling on your shoulder or reaching out to catch yourself. Sometimes, the exact cause isn’t clear.

If shoulder impingement isn’t treated, the pain can get worse and make it hard to move your arm or do daily activities. Early treatment can help relieve discomfort, reduce inflammation and restore shoulder function.

Anatomy of the shoulder

The rotator cuff is a group of four muscles and tendons that connect your shoulder blade to your upper arm bone (humerus). These muscles help you lift, rotate and move your arm while also keeping your shoulder stable.

Shoulder impingement happens when the rotator cuff gets pinched between the top of your arm bone and the bony part of your shoulder blade (called the acromion). This pinching can cause pain, inflammation and limited movement, especially when you reach overhead or behind your back.

Types of shoulder impingement 

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There are a few components of shoulder impingement that can cause symptoms to develop. Your healthcare provider might say that you have a more specific issue, including:

Rotator cuff tendonitis

Rotator cuff tendonitis happens when a tendon in your shoulder that supports your rotator cuff becomes swollen, deteriorated or irritated.

Shoulder bursitis

Your shoulder is lined with a fluid-filled sac called a bursa that helps your rotator cuff move. The bursa can become inflamed, leading to bursitis.

Anatomical changes

The acromion is typically flat, but some people have a curved or hooked acromion, which can narrow the space between the acromion and surrounding structures. This can mean you’re more likely to develop impingement.

Shoulder impingement symptoms

Shoulder pain is the most common symptom of shoulder impingement. It often feels like it’s coming from the front of your shoulder and can spread down the side of your arm. The discomfort may also:

  • Make your shoulder feel tender to the touch
  • Worsen at night, making it hard to fall or stay asleep

Certain movements or positions can make the pain worse, including:

  • Reaching your arm overhead
  • Lifting or lowering your arm
  • Reaching behind your back (like grabbing a wallet or unzipping a purse)
  • Lying on the affected shoulder

When to see a doctor

See your doctor whenever shoulder discomfort interferes with your day-to-day activities and doesn’t get better with over-the-counter medications. Many people with shoulder impingement don’t seek help in the early stages of the condition, but talking to a provider may allow you to treat your condition with less invasive treatments.

Living with shoulder discomfort? See if it’s time to see a specialist.
woman swimming free of pain after shoulder impingement treatment

Shoulder impingement causes and risk factors

Shoulder impingement happens when the space at the top of your shoulder narrows, putting pressure on the tendons and soft tissues. Repeated movements, like raising your arm overhead, can cause irritation, small tears and swelling, making it harder for your shoulder to move smoothly.

Athletes in sports like swimming and tennis, as well as people who do overhead activities like construction or painting, are more likely to develop this condition. Shoulder impingement can also occur after an injury, such as a fall or car accident. It can cause pain, weakness and difficulty moving your shoulder, especially when reaching or lifting your arm.

How is shoulder impingement diagnosed?

Most of the time, a doctor can diagnose shoulder impingement with a physical exam. During the exam, your doctor will ask about your symptoms, including when the discomfort started, if it has become worse over time, and if your job or hobbies require repetitive motion. They’ll also check for other shoulder and joint problems, including a rotator cuff injury, pinched nerve or arthritis. Sometimes, imaging tests are needed to rule out other possible causes of your discomfort.

  • Medical history and exam

    Your doctor will ask you to describe your discomfort, where you feel it and when it started. They may also ask you if you’ve tried treating it and, if so, whether those treatments have helped. If you’ve had previous shoulder injuries, be sure to let your doctor know about those, as well.

    Next, your doctor will perform a physical exam and may conduct a series of tests that involve moving your arm and shoulder in different directions to check your shoulder’s range of motion and arm strength.

  • Imaging tests

    Often, a physical exam is enough to diagnose shoulder impingement, but your doctor may want to confirm a diagnosis with imaging tests that show your shoulder and the surrounding structures in more detail. These tests can also help your provider diagnose specific causes of impingement and rule out other causes of pain, including rotator cuff tears, biceps tendon injuries and shoulder arthritis.

    Imaging tests may include:

    • X-ray: Shoulder impingement usually won’t show up on an X-ray because this test doesn’t show soft tissues of the shoulder, but it can help locate other causes of your discomfort.
    • MRI scan: An MRI can provide detailed images of the soft tissues of the shoulder, helping to identify rotator cuff damage or bursitis.
    • Ultrasound: An ultrasound can detect similar issues as an MRI and may be necessary if you can’t have an MRI.

Shoulder impingement treatment

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There are several treatment options for shoulder impingement, but the most common include rest and avoiding the activities or arm positions causing your pain. Other treatments can include over-the-counter pain relievers and applying ice or heat to the area to reduce discomfort and swelling, and physical therapy to strengthen your shoulder and improve its range of motion. You may need surgery if conservative treatments aren’t effective.

Lifestyle changes and home remedies

To help with shoulder impingement, it's important to rest your shoulder and avoid activities that may have caused the discomfort, like swimming. Your healthcare provider will let you know how long to take a break.

Applying ice to your shoulder can help reduce pain and swelling. Wrap the ice pack in a towel to protect your skin and follow your provider's advice on how often and for how long to use it.

You may also need to adjust how you move or perform certain tasks. If you're an athlete, changing your posture or technique during training or competition can help prevent further strain on your shoulder.

Physical therapy

Physical therapy can help strengthen the muscles in your rotator cuff and surrounding your shoulder blade. It can also address muscle imbalances that may contribute to overuse injuries. A physical therapist will work with you in one-on-one sessions and may give you exercises to perform at home.

Medication

Medications used to treat shoulder impingement typically focus on reducing inflammation and swelling.

  • Nonsteroidal anti-inflammatory drugs (NSAIDs): Aspirin, ibuprofen and naproxen sodium all work to reduce inflammation in muscles and joints and help relieve discomfort.
  • Corticosteroid injections: These medications are injected directly into the shoulder joint to reduce swelling and pain. You typically receive these injections at your doctor’s office.

Surgery

Most shoulder impingement cases can be treated without surgery, but sometimes surgery is needed if pain continues or movement doesn't improve with other treatments. Surgical options focus on creating more space in the shoulder to relieve pressure and improve function.

These procedures are usually done using arthroscopic surgery, which involves small incisions and specialized tools. This minimally invasive approach often leads to quicker recovery and less discomfort than traditional open surgery. Your doctor will help you decide the best option based on your symptoms and overall health. Surgical options may include:

  • Subacromial decompression and acromioplasty: This procedure removes bone tissue from the top of the shoulder blade (acromion) to create more room for tendons and soft tissues. It's often recommended for people with curved or hooked acromions or bone spurs causing irritation.
  • Bursectomy: This procedure involves removing an inflamed bursa (a fluid-filled sac that helps with movement) and any scar tissue.
  • Rotator cuff repair: If a torn rotator cuff is part of the problem, surgery can reattach the torn tendons to the bone in your upper arm (humerus).

Locations

We offer several locations for your care, including specialty orthopedic centers in North and Central Texas.

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Frequently asked questions

  • What does an impinged shoulder feel like?

    Shoulder impingement pain can feel like it’s coming from the front of your shoulder and radiating down your arm. Your shoulder might even feel tender to the touch.

    You might notice that your pain is worse when you extend your arm above your head to grab an item off a shelf or reach behind your back to grab your wallet out of your back pocket.

  • Does shoulder impingement go away?

    Shoulder impingement usually does not go away without some form of treatment. Fortunately, the condition is very treatable with rest, physical therapy and medications, but it can take a few months for your shoulder to heal completely.

  • How long does shoulder impingement last?

    Shoulder impingement often starts improving within a few weeks with rest and physical therapy. Full recovery can take three to six months, though more severe cases may take up to a year to fully heal.

  • Can shoulder impingement cause neck pain?

    Yes, shoulder impingement can lead to neck pain. The muscles and nerves in your shoulder and neck are connected, so pain from the shoulder can spread to your neck. Poor posture and limited shoulder movement can also strain your neck muscles, causing discomfort. Treating the shoulder impingement can help ease neck pain.

  • Is frozen shoulder the same as shoulder impingement?

    Frozen shoulder and shoulder impingement are different conditions. Frozen shoulder primarily causes stiffness, making it hard to move your arm and leading to pain. Shoulder impingement happens when the rotator cuff gets irritated, causing pain, especially when lifting your arm. Both can cause discomfort, but they have different causes and treatments.