Dizziness and generalized numbness may be caused by insufficient blood supply to the brain, diabetes mellitus, cervical spondylosis and other reasons. 1. Insufficient blood supply to the brain: such as aortic atherosclerosis, cervical spondylosis and other causes of insufficient blood supply to the brain, dizziness and generalized numbness may occur. 2. Diabetes mellitus: If the blood sugar of diabetic patients is often poorly controlled, it can adversely affect the cerebral blood vessels and peripheral nerves, and at the same time, hypoglycemia may occur, manifesting the symptoms of dizziness and generalized numbness. 3. Cervical spondylosis: cervical spondylosis patients due to cervical disc herniation compression of local nerves and blood vessels, can lead to dizziness, generalized numbness symptoms. It is recommended that people with dizziness and generalized numbness go to the hospital in time to clarify the cause of the disease and standardize the treatment under the guidance of the doctor.