Recovery time after a knee fall is related to the severity of the fall and the patient’s ability to heal, with a full recovery in 1-2 weeks for mild cases and a longer recovery time for patients with fractures. If the knee is only swollen with soft tissues and no bone tissue is injured, the healing time is faster and the swelling is usually healed in 1-2 weeks. Patients with knee injuries who have fractures need to be specifically analyzed according to the healing status of the fracture. Younger patients have stronger bone tissue healing ability and require 1-2 months of immobilization treatment for gradual healing of the fracture and then functional recovery, with full recovery time being individually variable and related to the patient’s exercise compliance. Older patients have a slower fracture healing time, and older patients with comminuted fractures may not heal for a long time. Patients with knee injuries need to be treated promptly and not on their own to avoid delaying the condition and worsening it.