Patella fracture can not have sex during the treatment, it is best to have sex after the fracture is fully recovered. Patella fracture symptoms are more obvious, often appear after the trauma knee swelling, pain and knee extension dysfunction and other symptoms. After timely and standardized conservative treatment and surgical treatment, most of the knee joint function can be restored to normal. Sex during the treatment may cause knee joint activity disorder, leading to aggravation of the condition and affecting the recovery of the fracture, so it is not recommended to have sex. Partial patella fracture can lead to articular cartilage destruction and cartilage softening, traumatic osteoarthritis, there may be bone spurs and sclerotic bone formation. Degenerative arthritis may occur in severe cases. During the recovery period of the fracture, overloading of the knee joint such as mountaineering should be avoided, and the relevant muscles around the knee joint should be strengthened under the guidance of the doctor, in order to strive for early recovery.