What Is Subacromial Bursitis?

This shoulder injury is a swelling of the subacromial bursa – a fluid-filled sac that creates a cushion between the acromion and the head of the humerus. Subacromial bursitis often occurs alongside shoulder impingement syndrome, since both conditions involve the same crowded space beneath the acromion; getting an accurate diagnosis of which structures are inflamed is an important first step in treatment.

 

Causes

Subacromial bursitis often develops from repeated friction or pressure on the bursa, most commonly from jobs or activities that involve frequent overhead reaching, such as painting, carpentry, or certain sports. Direct trauma to the shoulder, as well as underlying conditions like rotator cuff irritation, can also trigger inflammation of the bursa.

Symptoms of Subacromial Bursitis

Subacromial bursitis symptoms can include tenderness, swelling, reduced range of motion and weakness in the shoulder. Minor pain may be present even when the shoulder is at rest. Sudden sharp pain may be felt when the arm is used.

Treatment on Staten Island & NYC

Treatment options may include rest, anti-inflammatory medications, cortisone injections and physical therapy. If those methods do not relieve the symptoms, shoulder surgery may be needed to create space in the shoulder joint. Ultrasound-guided corticosteroid injections are a well-studied first-line option: one study found significant improvement in pain and disability for 64% of patients at six weeks, though fewer patients maintained long-term relief, underscoring why injection technique and follow-up care matter. Precise dosing also affects outcomes; a 2026 retrospective study of MRI-confirmed subacromial bursitis patients compared different corticosteroid doses delivered under ultrasound guidance to identify the most effective, lowest-risk approach. Dr. Tehrany offers a variety of treatment options at both the Manhattan and Staten Island offices.

Getting the Diagnosis Right

Because subacromial bursitis so often overlaps with rotator cuff and impingement problems, an accurate diagnosis matters as much as the treatment itself. Dr. Tehrany uses hands-on examination and imaging to pinpoint exactly which structures are inflamed before recommending a treatment plan, rather than treating shoulder pain as a single, generic diagnosis. When injections are part of the plan, they’re performed with precise, image-guided technique, a detail that research links directly to better outcomes. Patients can access this level of care at either the Manhattan or Staten Island office.

Schedule a Consultation with Dr. Tehrany in Staten Island or Manhattan

If shoulder pain and stiffness are affecting your daily life, Dr. Tehrany can help pinpoint the cause and get you on the right treatment path. Book your consultation today.