What causes numbness in both hands and palpitations?

Hand numbness and palpitations may be caused by conditions such as hypoglycemia, cervical spondylosis, or hyperthyroidism. A detailed analysis is as follows:

1. Hypoglycemia

Hypoglycemia can stimulate increased secretion of adrenaline, leading to sympathetic nervous system activation. Patients may experience autonomic nervous system symptoms such as palpitations, hand tremors, and numbness, along with sweating and hunger.

2. Cervical Spondylosis

Cervical spondylosis is a clinical syndrome caused by degenerative changes in the cervical intervertebral discs. In severe cases, it may compress nerves within the cervical spine, resulting in hand numbness, and may also be accompanied by palpitations.

3. Hyperthyroidism

This condition can cause overactivity of the sympathetic nervous system, affecting the muscles and nerves in the hands and causing localized numbness. It may also accelerate blood flow, leading to palpitations.

Besides the above relatively common causes, other possible reasons include peripheral neuritis, hypertension, and coronary atherosclerotic heart disease. If any discomfort occurs, prompt medical evaluation and treatment are essential to avoid delaying diagnosis and management.