Subdeltoid bursitis with a small amount of fluid in the right shoulder joint can be treated with general treatment, physical therapy, medication and surgery according to the severity. 1. General treatment: pay attention to rest, reduce the activity of shoulder joint, avoid trauma and cold. 2. Physiotherapy: Hot compresses and baking electricity can be applied to improve local blood circulation and promote the subsidence of inflammation and absorption of fluid. You can also choose ultrasound and other physical therapy to eliminate bursa inflammation. 3. Drug treatment: choose the appropriate drugs under the guidance of the doctor, such as ibuprofen extended-release capsules, celecoxib capsules, etc. for controlling inflammation and relieving pain. Local injection of prednisolone acetate plays an anti-inflammatory role. 4. Surgical treatment: For those who are ineffective in non-surgical treatment, bursa resection can be considered. In order to prevent recurrence, the factors causing bursitis should be removed as much as possible during the surgery. Suffering from subdeltoid bursitis, a small amount of effusion in the right shoulder joint should be timely and standardized treatment in accordance with the doctor’s instructions, and should not be blindly used on their own, so as to avoid delaying the condition.