People diagnosed with diabetes can develop foot complications including loss of sensation in the feet. This can result in damage that you may be unaware of such as standing on a sharp object or a toenail digging in. People with diabetes should have annual foot assessments to monitor any loss of sensation. Numb feet should be always be protected and checked regularly for damage. Diabetes can also affect the blood supply to the feet, causing a delay in healing and increasing the risk of infection. The circulation to the feet is also checked during a diabetic foot assessment.