Maximum medical improvement, or MMI, is a legal term used to describe the point at which you have recovered to your fullest capacity. This is determined by your treating doctor, who will issue a statement that no further treatments can be recommended to help your condition. After you reach a state of maximum medical improvement, your medical benefits from workers’ compensation can end. However, depending on the nature of your disability — if it is permanent, for example — you may still be eligible to collect benefits for lost wages.