It is not normal to have pain half a year after a foot sprain, no matter there is a ligament tear or ligament damage after the sprain, or there is a fracture, basically it can be recovered in about half a year, and there is still a pain that there are the following possibilities: 1) the sprain is relatively light at that time, and you don’t pay attention to it, and you still have the normal activities, and you don’t have a good recuperation. 2) it may be related to a part of the rare talus cartilage injury. Talus cartilage injury, even if there is a corresponding examination after the sprain at that time, but this part of the cartilage injury is very hidden, not good to find, coupled with a short rest time, there are strenuous activities, it is easy to still appear pain. However, no matter which aspect of the pain, if it is now more obvious to affect the normal life, you should go to the hospital to do a checkup, and if necessary, do an MRI, to determine whether there are ligaments, bones or even the cartilage of the joints have not recovered from the damage.