Left shoulder bone marrow edema with effusion may be caused by arthritis or trauma and other factors, the treatment needs to be determined according to the severity of the disease and the cause of the disease, trauma caused by the first immobilization and avoid activities, and then according to the specific circumstances of the treatment, inflammation caused by the treatment includes heat treatment, acupuncture treatment, and medication and so on. Specifically as follows. 1. If it is caused by injury, it is feasible to immobilize the shoulder joint and suspend the forearm. 2. Inflammation-induced hot compress treatment: hot compresses can be applied to the joint area of the left shoulder joint, or physical therapy, such as infrared rays, magnetic therapy, etc., which can promote local blood circulation in the shoulder joint, and then promote the absorption of fluid accumulation. Acupuncture and moxibustion: Acupuncture and moxibustion can be administered by a professional physician to the shoulder joint, which can also promote blood circulation in the shoulder joint and facilitate the absorption of the fluid. Medication: If the injury is mild and the degree of effusion is not serious, cold compresses can be applied to the affected limb within 2 days, and hot compresses can be applied after 2 days. Oral painkillers such as ibuprofen and glucosamine capsules for nutritional cartilage treatment can be used for obvious swelling and pain, which can promote the inflammation to subside, and then reduce the formation of effusion. If the injury is very serious, shoulder joint activity is obviously limited, and accompanied by continuously aggravated swelling, you need to go to the hospital for examination. If there is severe ligament or osteoarthritic damage to the shoulder, casting or surgery may be required. If you experience any of the above symptoms, you should go to the hospital promptly.