How long it takes for patella fracture to bend to normal needs to be determined according to the severity of the fracture, whether it is treated by surgery and other comprehensive factors. For mild patella fracture, it usually takes three months or even longer; after being fixed by surgical treatment, it usually takes about two months. If the patella fracture is not particularly serious and not treated by surgery, it usually takes three months or longer to recover to the normal bending degree, and at the same time, we should pay attention to the rehabilitation exercise during the recovery process, but avoid strenuous activities and pay attention to rest. If surgical treatment is performed to fix it, usually 2~3 weeks can be some bending activities, usually takes about two months to recover, pay attention to avoid excessive activities. After the patella fracture, it is necessary to seek medical treatment in time, X-ray, CT and other auxiliary examination to determine the severity and determine the treatment plan.