Possible reasons for walking pain after removing the leg cast include soft tissue not recovered, poor blood circulation, osteoporosis and so on. 1. Soft tissue not recovered: it may be due to the long time of plaster fixation, resulting in stiff joints, muscle adhesion, limited activities or local ligaments, fascia, etc., appearing stiff and atrophic phenomenon. 2. Poor blood circulation: it may be due to the formation of local scars, resulting in blood transportation obstacles, poor blood circulation and cause the symptoms of walking pain after removing the leg cast. 3. Osteoporosis: it may be due to the cast fixed for too long, long time without weight bearing, resulting in the bones of the foot, osteoporosis, causing walking pain phenomenon. Walking pain after removing the leg cast may also have other reasons, it is recommended to go to the regular hospital in a timely manner to improve the relevant examination, to clarify the cause of the disease, under the guidance of the doctor to carry out targeted treatment or therapy.