Walking nail cap pain may be caused by local infection, trauma, peripheral neuropathy, nail groin infection, etc., and you should consult a doctor in time to find out the cause. 1. Local infection: pain caused by inflammation, such as periungual inflammation, inguinitis spread to the nail bed area, can cause local redness, swelling, heat, pain, and in severe cases, there will be obvious pus. 2. Trauma: nail cover pain can also be caused by local trauma, such as extrusion, pinching, stepping on the injury can lead to nail cover pain, if there is acute hemorrhage and bruising under the nail, there will also be obvious pain. 3. Peripheral neuropathy: peripheral neuropathy caused by diabetes may also cause localized pain in the extremities and nail cap. 4. Nail groove inflammation: often caused by ingrown toenails, due to local bacterial infection caused by nail groove inflammation, when the pus in the nail groove accumulates under the nail, there will be the whole toenail cap peeling, nail cap and nail bed separation will be obvious pain. Walking nail cap pain may also be caused by other factors, it is recommended to consult a doctor to clarify the cause of the disease and give targeted treatment.