Numbness of diabetic feet has more causes, such as diabetic peripheral neuropathy, diabetic vasculopathy, other diseases and so on. 1. Diabetic peripheral neuropathy: Numbness of the soles of the feet usually occurs bilaterally and mostly from the distal end, which is caused by peripheral neuropathy due to diabetes mellitus. 2. Diabetic vasculopathy: If there is unilateral numbness of the soles of the feet, it may be caused by the damage of local blood vessels due to diabetes, resulting in microcirculatory disorders. 3. Other diseases: In addition to diabetes itself, if the age itself is older, some other diseases may also lead to numbness of the soles of the feet, such as sprains, lumbar disc herniation and so on. If diabetic patients have numbness of the feet, it is recommended to go to the hospital for a comprehensive examination in time, and give targeted treatment after clarifying the cause of the disease.