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Shoulder Tendonitis Vaccine Injury

 

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Shoulder Tendonitis Vaccine Injury

 

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Shoulder Vaccine Injuries

A Common Yet Often Misdiagnosed Shoulder Injury Related to Vaccine Administration

If you're experiencing persistent shoulder pain following a vaccine injection, you may be suffering from a shoulder tendonitis vaccine injury. This type of shoulder injury related to vaccine administration is a recognized condition on the vaccine injury table and could qualify you for compensation under the Vaccine Injury Compensation Program (VICP).

Many individuals experience atypical shoulder pain, especially in the left shoulder days or even hours after vaccination. When the injection penetrates too deeply or inaccurately into the deltoid muscle, it triggers an inflammatory reaction that results in chronic shoulder injury related to improper vaccination practice. Left untreated, the pain may worsen and evolve into rotator cuff tendinopathy, subdeltoid bursitis, or even require surgical intervention. If your symptoms haven’t resolved, don’t wait. We’ll help confirm whether your injury is a vaccine related tendonitis—and explain what your next legal steps could be.

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Shoulder Tendonitis Vaccine Injury | My Vaccine Lawyer

 

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Hear Cheryl's Vaccine Injury Story

 

Cheryl, a former client of My Vaccine Lawyer, shares her experience with Shoulder Injury Related to Vaccine Administration (SIRVA) following a flu shot. She describes the sudden onset of pain, limited shoulder mobility, and a long recovery process that led her to seek legal help from attorney Max Muller.

With his support, Cheryl filed a successful claim through the Vaccine Injury Compensation Program and received a settlement covering her medical expenses, lost wages, and pain and suffering. SIRVA symptoms typically include sudden pain within 48 hours of vaccination, restricted range of motion, and discomfort that can last for weeks or months.

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Which Vaccines Have Been Linked to Shoulder Tendonitis?

Several vaccines have been associated with shoulder tendonitis injuries when administered improperly. These include the inactivated influenza vaccine, coronavirus disease (COVID-19) vaccines, Tdap, hepatitis B, and pneumococcal vaccines. The injury is not due to the vaccine components themselves but to errors in vaccine administration — particularly incorrect injection technique, inappropriate needle length, and poor landmarking on the deltoid muscle.

These injection site events can cause direct trauma to tendons or surrounding structures in the shoulder area, resulting in inflammatory responses that lead to shoulder tendonitis. The vaccine injury table recognizes this type of shoulder injury related to vaccine administration, and it appears in numerous case reports reviewed by orthopaedic surgeons.

What Is Shoulder Tendonitis?

Shoulder tendonitis is inflammation of one or more tendons within the shoulder joint, typically involving the rotator cuff or biceps tendon. The condition leads to shoulder pain, reduced range of motion, and functional limitations. It may occur due to trauma, overuse, or — in the case of vaccine-related injuries — external insult to soft tissue structures.

There are multiple types, including rotator cuff tendinopathy, and the condition may occur in isolation or alongside bursitis or frozen shoulder.

What Causes Shoulder Tendonitis After a Vaccine?

The primary cause of shoulder tendonitis following vaccination is faulty intramuscular injection into the deltoid muscle. When the injection is too high, too deep, or angled improperly, it may penetrate soft tissue structures such as the subacromial bursa, subdeltoid bursa, or rotator cuff tendons which trigger an inflammatory reaction. This mechanical trauma causes tendon irritation and swelling, leading to persistent shoulder pain and impaired external rotation. These injuries are classified as injury related to vaccine administration, not as allergic or systemic adverse reactions.

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Shoulder Tendonitis Vaccine Injury | My Vaccine Lawyer

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Shoulder Tendonitis Vaccine Injury | My Vaccine Lawyer

What Are the Symptoms of Shoulder Tendonitis?

Symptoms of shoulder tendonitis vaccine injury often begin within 48 hours of a vaccine and can include:

  • Severe shoulder pain that worsens instead of improving

  • Worsening shoulder pain with movement or at rest

  • Pain localized in the left shoulder or upper arm

  • Altered sensation, such as burning or tingling

  • Loss of shoulder range and external rotation

  • Difficulty performing overhead activities

Some patients report immediate pain at the injection site. These symptoms differ significantly from normal post-vaccine soreness and may require further evaluation.

What Are the Diagnostic Steps for Vaccine-Related Shoulder Tendonitis?

Diagnosis begins with a focused physical examination assessing tenderness, strength, and range of motion. Imaging, particularly magnetic resonance imaging (MRI), is the gold standard for identifying inflammation, tendon thickening, or other signs of shoulder tendonitis. MRI also helps distinguish tendonitis from other shoulder complaints, such as:

  • Rotator cuff tear

  • Frozen shoulder

  • Subacromial bursitis

Clinicians will consider recent vaccine receipt, lack of prior history, and anatomical correlation of pain. Accurate diagnosis enables appropriate medical treatment, which may include physical therapy, corticosteroid injections, or nonsteroidal anti inflammatory drugs. Delays can lead to chronic cases requiring orthopaedic surgery or surgical intervention. Tendonitis may start small, but it rarely resolves on its own. If the pain is still there, we’ll help confirm the cause—and explain what compensation you may be entitled to.

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Shoulder Tendonitis Vaccine Injury | My Vaccine Lawyer

The Legal Process for Vaccine Injury Cases

Vaccine injury cases follow a unique legal process. Since these claims are handled under the VICP, they require an attorney with experience in federal vaccine litigation. At My Vaccine Lawyer, we start with a free consultation to assess your claim. We then gather medical records, expert testimony, and supporting evidence to build a strong case. If a fair settlement isn’t offered, we are prepared to take your case to trial.

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1. Contact Your Doctor

If you suffered a vaccine-related injury, adverse effects or worsening symptoms, call your doctor immediately.

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