What causes numbness in the left hand and foot, and how can it be resolved?

Numbness in the left hand and foot may be caused by physiological factors, but it could also result from medical conditions such as cervical spondylosis or peripheral neuritis. Patients should seek timely medical evaluation and treatment based on the underlying cause. Specific analyses are as follows:

1. Physiological Factors

If poor posture causes prolonged compression of the left hand or left foot, localized numbness may occur. This is usually normal and tends to resolve with appropriate movement or activity, requiring no special concern.

2. Disease-Related Factors

1) Cervical Spondylosis
When cervical spondylosis occurs, nerves controlling the limbs may become compressed, leading to numbness in the hands and feet, often accompanied by symptoms such as headache and dizziness. Under a doctor's guidance, patients may take medications such as Maituling tablets or Oryzanol tablets to help relieve symptoms.

2) Peripheral Neuritis
Peripheral neuritis refers to an aseptic inflammatory condition affecting the extremities, commonly associated with infections, trauma, or similar factors. Symptoms typically include numbness and pain in the hands and feet. Doctors often recommend medications such as Carbamazepine tablets or Vitamin B1 tablets to alleviate symptoms.

Besides the common causes mentioned above, other conditions—such as peripheral neuropathy, lumbar disc herniation, or osteoarthritis—may also be responsible. Patients should seek prompt medical attention to avoid delays in diagnosis and treatment.