What causes numbness in the feet at night?

Generally, nighttime numbness in the feet may be caused by improper sleeping posture, cold exposure to the feet, lumbar disc herniation, cervical spondylosis, or multiple peripheral neuritis. Patients should promptly visit a正规 hospital for diagnosis and receive treatment based on their specific condition. Detailed analysis is as follows:

1. Improper Sleeping Posture

If the sleeping posture is incorrect, prolonged pressure on certain areas can impair local blood circulation, leading to insufficient blood supply to the extremities and causing the aforementioned numbness. This is usually a normal physiological phenomenon that typically resolves once the posture is adjusted.

2. Cold Exposure to the Feet

If the feet are exposed during sleep, they may become chilled, slowing down blood circulation and reducing blood flow to the extremities, which can result in nighttime foot numbness. The feet may even feel icy to the touch. In such cases, patients can apply warm compresses to the feet and ensure proper warmth and insulation.

3. Lumbar Disc Herniation

Following degenerative changes in the lumbar spine, intervertebral discs may protrude posteriorly and compress the sciatic nerve, causing lower back pain, leg numbness, and aching discomfort in the waist. Maintaining the same posture for extended periods may trigger these symptoms. Under medical guidance, patients may take medications such as Yaotongning Capsules, Duhuo Jisheng Pills, or Celecoxib Capsules for treatment.

4. Cervical Spondylosis

This condition is commonly caused by long-term cervical strain or bone spurs, which may compress local nerves and lead to the above symptoms. Additional symptoms may include dizziness, neck pain, and restricted shoulder and back movement. Patients may follow medical advice to take medications such as Eperisone Hydrochloride Tablets, Naproxen Sodium Tablets, or Compound Paracetamol and Amantadine Tablets to alleviate symptoms.

5. Multiple Peripheral Neuritis

This condition is often triggered by factors such as allergies, infections, or poisoning. Under inflammatory stimulation, patients may experience foot numbness during sleep, along with cold skin sensation and reduced muscle tone. It is recommended that patients take medications such as Vitamin B12 Tablets, Mecobalamin Tablets, or Carbamazepine Tablets under medical supervision.

In addition to medical treatment, patients may benefit from foot massage at night to relieve tension and promote blood circulation. Ensuring that the mattress has appropriate firmness and height can properly support the spine and body while minimizing pressure on the feet.