Mild metatarsophalangeal arthritis usually takes about 4 weeks to heal on its own if it is caused by a strain. Most other forms of metatarsophalangeal arthritis, such as those caused by degeneration and infection, are usually difficult to heal on their own. Inflammation of the metatarsophalangeal joints caused by mild strain injury can generally heal spontaneously after about 4 weeks of rest, but other factors need to be ruled out, and if the local pain symptoms are not relieved after rest, it is necessary to go to the hospital in time to further clarify the condition. For metatarsophalangeal joint inflammation caused by degenerative changes, infections and traumatic arthritis, it is not possible to reverse the cartilage lesions because of local cartilage lesions or local bacterial attack, so this kind of arthritis cannot be cured on its own, and the symptoms of infected arthritis are usually more serious and difficult to be cured on its own if it is not treated in a timely manner. If you are diagnosed with metatarsophalangeal arthritis, you should go to the hospital in time and receive standardized treatment under the guidance of your doctor.