Numbness in hands and feet and dizziness may be caused by hypoglycemia and hypotension, as follows: 1. Hypoglycemia: At the same time, symptoms such as palpitations, chest tightness and shortness of breath may occur. Blood sugar should be measured, and if blood sugar is lower than 3.9mmol/L, it is called hypoglycemia, and should be treated with timely sugar supplementation, and can be treated with oral sugar saline, sugar cubes, chocolate, and if necessary, intravenous push of hypertonic glucose for rapid correction. Severe hypoglycemia may cause hypoglycemic encephalopathy, which may also lead to life threatening. The causes of hypoglycemia include many aspects, such as irregular diet during the application of certain hypoglycemic drugs in diabetic patients, which is prone to hypoglycemia, and if the patient usually has an irregular diet, it is also prone to hypoglycemia. 2. Hypotension: Severe hypotension may cause hypoperfusion in the brain, resulting in insufficient blood supply to the brain, which can lead to numbness in the hands and feet, and may also lead to dizziness, impaired balance and ataxia. It is possible to improve mainly with volume-expanding drugs, such as intravenous infusion of 706 plasma substitute.