What causes numbness in the left arm?
Disease description:
I've been a diabetic patient for a long time. Sometimes when my blood sugar rises, my left arm becomes numb. Why is this?
Doctor's answer (1)
Dr. Lv Zhiqin
Causes of numbness in the left arm include:
1. Cervical spondylosis: When intervertebral discs protrude or there is bone spur formation in the cervical spine, nerve roots may become compressed, leading to radiating pain and numbness in the left arm. Patients with radiculopathy-type cervical spondylosis often experience pain, numbness, and weakness in the neck, shoulders, and upper limbs.
2. Elbow joint inflammation: Ulnar nerve compression caused by bone spurs, for example, can also result in upper limb numbness, particularly affecting the little finger and ring finger.
3. Peripheral neuropathy: Conditions such as brachial plexus neuritis or vasculitic peripheral neuropathy may also cause numbness in the arm.
4. Circulatory problems: Maintaining one position for a prolonged period, such as having the arm compressed while sleeping, or poor circulation can lead to impaired local blood flow, causing arm numbness.
5. Diabetic neuropathy: Long-term high blood sugar levels can damage nerves, a condition known as diabetic neuropathy, which may cause sensory abnormalities, including numbness.
If numbness persists, it is recommended to seek medical evaluation at a hospital.
