Overview
Neuropathy is a broad term for problems caused by damaged nerves. It can affect sensory nerves, which help you feel touch and pain; motor nerves, which control muscles; and autonomic nerves, which help manage automatic body functions such as blood pressure, digestion, sweating, and bladder function. Peripheral neuropathy affects nerves outside the brain and spinal cord, while other nerve disorders can involve different parts of the nervous system.
Key Symptoms
Symptoms depend on which nerves are affected. People may notice numbness, tingling, burning, sharp pain, sensitivity to touch, muscle weakness, cramps, balance problems, or trouble feeling heat, cold, or injuries. If autonomic nerves are involved, symptoms can include dizziness when standing, bowel or bladder changes, abnormal sweating, sexual problems, or digestive symptoms.
Causes and Risk Factors
Neuropathy has many possible causes. Common causes include diabetes, physical injury, infections, autoimmune diseases, kidney disease, thyroid problems, vitamin deficiencies, alcohol use, exposure to toxins, and some medicines such as certain chemotherapy drugs. In some people, the cause is inherited or remains unclear even after testing.
Who Is Affected
Neuropathy can affect people of any age, but the risk is higher in people with diabetes, long-term heavy alcohol use, certain chronic illnesses, or a family history of inherited nerve disorders. People exposed to toxins or repetitive pressure on nerves may also be affected. Older adults may be more likely to develop neuropathy because some causes become more common with age.
Prevention
Prevention depends on the cause. Managing long-term conditions such as diabetes, avoiding harmful alcohol use, treating vitamin deficiencies, and reducing exposure to toxins may lower the risk of nerve damage. Protecting the feet and hands from injury, especially if sensation is reduced, can help prevent complications.
Diagnosis and Tests
A healthcare professional usually starts with questions about symptoms, medical history, family history, and medicines, followed by a physical and nerve exam. Tests may include blood tests, nerve conduction studies, electromyography, imaging, or other tests depending on the suspected cause. Finding the cause is important because treatment and outlook can differ widely.
Treatment Categories
Treatment focuses on the cause when possible and on reducing symptoms and preventing complications. This may include managing blood sugar, stopping or changing a medicine under medical guidance, treating an underlying disease, physical therapy, supportive devices, skin and foot care, and medicines for nerve pain. Some people may also need occupational therapy or rehabilitation support if weakness or balance problems affect daily life.
Living With It
Living with neuropathy can involve adapting daily routines to reduce pain, prevent falls, and protect areas with poor sensation. Regular foot and skin checks are important because injuries or sores may go unnoticed. Support from healthcare professionals can help with symptom management, mobility, sleep, and emotional stress.
When to Seek Medical Care
Arrange medical care if you have ongoing numbness, tingling, burning pain, weakness, frequent falls, or new problems with bladder, bowel, or sexual function. Seek care promptly if symptoms are getting worse, affecting walking or hand use, or developing after a new medicine, infection, or exposure to chemicals. Early evaluation may help identify a treatable cause.
When It May Be an Emergency
Get urgent medical help if numbness or weakness starts suddenly, especially on one side of the body, or if it comes with trouble speaking, facial drooping, severe headache, chest pain, trouble breathing, or loss of consciousness. Emergency care is also needed for rapidly worsening weakness, inability to walk, severe injury you cannot feel, or signs of a serious infection in a numb foot or hand. These symptoms may have causes other than neuropathy and should be checked right away.