What causes numbness and pain in both hands upon waking up?

Waking up with numbness, swelling, and pain in both hands may be caused by cervical spondylosis or rheumatoid arthritis, or possibly by vascular disease.

1. Cervical Spondylosis

Cervical disc herniation can compress nerve roots, leading to finger numbness. Improper sleeping posture or an unsuitable pillow at night may exacerbate cervical spondylosis, resulting in numbness, swelling, and pain in both hands upon waking.

2. Rheumatoid Arthritis

Rheumatoid arthritis is a systemic autoimmune disorder characterized by the immune system mistakenly attacking healthy joint tissues, triggering inflammatory responses in the joints. Such inflammation can cause numbness, swelling, and pain in both hands upon waking, often accompanied by reduced finger dexterity and joint stiffness.

3. Vascular Disease

Vascular disease may reduce the body’s basal metabolic rate during sleep and slow cerebral blood flow, leading to insufficient cerebral perfusion and impaired peripheral circulation—thereby causing numbness, swelling, and pain in both hands upon waking.