Causes of Numbness and Tingling in the Arms and Legs:
Pressure or Compression:
Numbness and tingling can occur when nerves are compressed or pressured. This can result from sitting or sleeping in an awkward position, which temporarily reduces blood flow and affects nerve function.
Peripheral neuropathy refers to damage or dysfunction of the peripheral nerves, which transmit signals between the central nervous system (brain and spinal cord) and the rest of the body. It can be caused by various factors, including diabetes, vitamin deficiencies, autoimmune diseases, and certain medications.
Nerve Entrapment:
Conditions such as carpal tunnel syndrome (wrist nerve compression) or cubital tunnel syndrome (elbow nerve compression) can lead to numbness and tingling in the affected limb.
Herniated Discs:
Herniated or bulging discs in the spine can compress nearby nerves, leading to symptoms that radiate into the arms or legs.
Poor Circulation:
Reduced blood flow, whether due to vascular disease or other circulatory issues, can result in numbness and tingling in the limbs.
Infections and Diseases:
Certain infections, such as Lyme disease or shingles, and diseases like multiple sclerosis can affect nerve function and lead to sensory disturbances.
Injuries:
Trauma or injuries, such as a fall or sports-related injury, can damage nerves and cause numbness and tingling.
Toxic Exposure:
Exposure to toxins, such as lead or certain chemicals, can damage nerves and lead to paresthesia.
Medications:
Some medications, particularly chemotherapy drugs, can cause peripheral neuropathy as a side effect.
Stroke or Mini-Stroke:
A stroke or transient ischemic attack (TIA) can affect blood flow to the brain or limbs and lead to numbness or tingling.