It may be normal for swelling to remain incomplete 40 days after manipulation of a distal radius fracture. After the distal radius fracture, it can be immobilized with cast or splint by manipulation, which may cause local swelling due to local trauma and manipulation. Due to the local trauma and manipulation, it is easy to cause localized swelling. Since the external fixation with cast or splint affects the venous and lymphatic return around the affected limb, the distal end of the affected limb will be obviously swollen. Generally speaking, the swelling of the distal limb will be significantly reduced in most patients in 2~4 weeks. 40 days later, the distal limb may still have mild swelling that has not been completely eliminated, which is normal, and can be recovered through rehabilitation exercises in the later stages. If there is no change or even aggravation of swelling after 40 days of manipulation, you should go to the hospital in time and do not treat it by yourself to avoid aggravation of the condition.