Whether bone marrow edema can heal on its own is closely related to the cause of its development. If the bone marrow edema is caused by trauma, most of them can heal on their own after the body repairs; if the bone marrow edema is caused by inflammation or infection, the extent of the disease will become more serious if it is not treated in time. Bone marrow edema refers to inflammation of bone marrow tissue due to various causes followed by edema, which is usually found in long bones, and its causes include infection, trauma and tumor. If it is caused by trauma, it can generally subside slowly without treatment and can basically return to normal function, but if the symptoms are slightly more severe, it is necessary to brake and elevate the limb. Cold compresses can be applied within 48 hours of the disease to promote capillary constriction and reduce swelling, and hot compresses after 48 hours can promote hematoma absorption. Patients will usually get good results after regular treatment. If the bone marrow edema is caused by infection, tumor or other factors, it is difficult to heal on its own. After the development of bone marrow edema, the specific cause of the disease should be clarified and treated for the cause, and attention should be paid to rest and reduce activities to promote the absorption of edema.