What causes numbness in the left fingers?
Disease description:
Left finger numbness occurs without any apparent cause and has persisted for several consecutive days. What are the possible causes of left finger numbness?
Doctor's answer (1)
Dr. Lv Zhiqin
The causes of numbness in the left fingers may involve multiple factors, mainly including the following:
1. Physiological factors: Prolonged poor posture, such as sleeping in a position that compresses the arm or fingers, may lead to impaired local blood circulation, thereby causing finger numbness. Additionally, cold environments may also affect blood circulation, leading to numbness in the fingers.
2. Local diseases: Conditions such as tenosynovitis, carpal tunnel syndrome, and other finger-related diseases, as well as nerve disorders of the left upper limb, may cause numbness in the left hand fingers.
3. Systemic diseases: Diabetes, where long-term high blood sugar levels can cause peripheral nerve damage, leading to finger numbness and even pain; cervical spondylosis, where cervical spine lesions compress nerve roots, particularly in the radiculopathy type of cervical spondylosis, which may result in finger numbness usually accompanied by neck and shoulder discomfort; cerebrovascular diseases such as cerebral infarction or cerebral hemorrhage, which can cause finger numbness often accompanied by other neurological symptoms like limb weakness and speech disorders.
If finger numbness persists or recurs frequently, it is recommended to seek medical attention promptly.
