What should you know about mild subacromial subdeltoid bursitis?

The subacromial and subdeltoid bursa is a thin, fluid-filled sac that helps tissues glide around the shoulder. Irritation can cause pain when reaching overhead, lifting, dressing, or lying on that side. Stiffness and tenderness may accompany it, while visible joint swelling is not always present. Similar symptoms can come from tendon or joint problems, so the label should be matched with an examination.

Temporarily reduce repeated overhead work, heavy lifting, and positions that cause a sharp increase in pain, while keeping gentle comfortable shoulder movement. Avoid holding the arm completely still for long periods because stiffness can develop. Cold or heat may feel soothing; protect the skin and use whichever is comfortable. A clinician may discuss anti-inflammatory medication if it is suitable for your health history. Physiotherapy can address shoulder movement, posture, and gradual strengthening. A cortisone injection is sometimes considered when symptoms persist, but it is not the first choice for every person.

Seek prompt care for a hot, red, markedly swollen shoulder, fever, sudden severe pain, or inability to move the arm after an injury. Arrange an assessment if pain is worsening, repeatedly interrupts sleep, or does not improve with activity modification. New weakness or numbness also deserves review.

How confident are we that the bursa is the pain source? Which movements should I modify, and which exercises are safe? Would medication or an injection suit my medical history? What changes should prompt an earlier review?