What causes the frequent sensation of numbness in the hands and feet?
Disease description:
Recently, I have been experiencing frequent numbness in my hands and feet. Sometimes the numbness occurs suddenly while I am sitting, and sometimes I wake up from sleep feeling the same way. This sensation of numbness is not occasional; it happens quite frequently. What could be causing this?
Doctor's answer (1)
Dr. Lv Zhiqin
Common causes of frequent numbness in hands and feet:
1. Prolonged maintenance of the same posture: such as sitting or standing for long periods, or incorrect sleeping positions, may cause poor local blood circulation, leading to numbness in the hands and feet. This condition is usually relieved by changing posture or moving the affected limbs.
2. Nerve compression: Conditions such as cervical spondylosis and lumbar disc herniation can compress nerve roots, causing numbness in the corresponding areas of the hands and feet. Additionally, nerve damage caused by diseases such as diabetic peripheral neuropathy and multiple sclerosis can also lead to numbness.
3. Circulatory disorders: Poor circulation is another significant factor that can cause numbness in the hands and feet. Prolonged immobility, atherosclerosis, and Raynaud's phenomenon can all lead to impaired local blood flow, resulting in numbness. Patients with heart disease may also experience impaired circulation in the extremities due to reduced cardiac pumping function, manifesting as numb hands and feet.
4. Metabolic diseases: Metabolic disorders such as hyperthyroidism and hypocalcemia can affect nerve conduction velocity or cause demyelination of nerves, resulting in numbness in the hands and feet.
5. Cold exposure: Prolonged exposure to cold environments can slow peripheral blood circulation in the extremities, potentially causing numbness.
