The causes of pain at the edge of the little toe when walking include soft tissue injury, external injury, arthritis and so on. The causes should be identified and treated in a timely manner. 1. Soft tissue injury: long time wearing unsuitable shoes or long time walking, etc. causes the bunion to be squeezed and rubbed, resulting in soft tissue injury, local inflammation and stimulation of pain. The pain can be relieved by resting, soaking feet in hot water and changing loose shoes. 2. External injuries: If the edge of the bunion is smashed or bruised, the pain will be caused by the injury. If the pain cannot be relieved by resting, the patient should go to the hospital to rule out the possibility of fracture. 3. Arthritis: Osteoarthritis, gouty arthritis and other diseases can also cause pain on the edge of the bunion. Walking bunion edge pain may also be caused by infection, skin disease, tendon inflammation, etc., should go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.