Whether or not you can walk 40 days after your foot cast is removed is largely based on recovery. Under normal circumstances, 40 days, the fracture or tendon rupture part of the recovery is good, you can walk; and for the fracture or tendon rupture healing poorly, the early after removing the cast can not walk. 1. Good recovery: foot cast mainly because after fracture or tendon rupture anastomosis, the fixation time needs to be 4~6 weeks, 40 days are within this range. If the patient recovers normally, the fracture line of the broken end of the fracture is fuzzy or scab formation, you can walk on crutches appropriately. 2. Poor healing: some patients have slower healing or non-healing, no obvious scab formation at the fracture end in 40 days, and the fracture line is still obvious, in which case walking after removing the cast can lead to secondary injury. For patients with poor healing of the anastomotic end of the tendon, walking after removing the cast for 40 days may also lead to re-rupture of the tendon. It is recommended that the patient undergoes a complete examination before removing the cast to ascertain the status of recovery, and then be advised or treated by a medical professional according to his/her condition.