Diabetes and Peripheral Neuropathy

A woman with diabetes examining her foot as part of her daily foot care routine in Austin, Texas.

Topic at a Glance

  • Diabetes can damage the peripheral nervous system and lead to diabetic neuropathy.
  • Early symptoms of peripheral neuropathy often include numbness, tingling, or nerve pain.
  • Poor blood sugar control increases the risk of peripheral nerve damage and complications.
  • Daily foot care and podiatric visits help prevent serious diabetic foot problems.

One of the most common and serious complications of diabetes is diabetic neuropathy, a form of nerve damage that affects sensation, movement, and overall foot health. In this article, we will explore how diabetes leads to peripheral nerve damage, the symptoms of peripheral neuropathy, and practical steps to protect your feet from serious complications like infections, deformities, and even amputation.

If you are experiencing nerve pain, numbness, or changes in sensation, our team at Bluebonnet Foot and Ankle Institute is here to help with expert diagnosis and personalized treatments for peripheral neuropathy. Schedule a diabetic foot evaluation in Austin, Texas, today to protect your long-term foot health.

Diabetes and Peripheral Neuropathy

Diabetes is a disease that affects how the body processes blood sugar. When glucose levels remain high, this can harm the peripheral nervous system, including the nerves responsible for sensation and movement.

Over time, this can lead to diabetic neuropathy, one of the most common neurological disorders associated with diabetes. According to the American Diabetes Association, about 1 in 3 Americans are pre-diabetic, highlighting how widespread this risk can be.

What is Peripheral Neuropathy?

Peripheral neuropathy refers to damage affecting the sensory nerves outside the brain and spinal cord, which make up the central nervous system. When these nerves are damaged, patients may experience symptoms of peripheral neuropathy such as tingling, numbness, muscle weakness, or severe pain.

Conditions like chronic inflammatory demyelinating polyneuropathy occur when the immune system attacks nerve coverings, further disrupting communication between the brain and body.

How Diabetes Affects the Feet

High blood sugar levels can damage peripheral nerves and reduce blood flow to the feet. This combination increases the risk of infection, slow healing, and reduced sensation.

Many patients are unable to feel cuts or blisters due to peripheral nerve damage, allowing small injuries to worsen. Diabetes may also affect nerves that regulate moisture and circulation, increasing dryness and vulnerability to skin breakdown.

Why Neuropathy is Dangerous

Neuropathy is dangerous because it disrupts pain signals that normally alert the body to injury. Without these signals, wounds can go unnoticed and progress to infection.

In severe cases, complications such as kidney disease, abscess formation, or bone infection can develop. Every day, many individuals with diabetes face amputations due to untreated infections linked to peripheral neuropathy symptoms and poor circulation.

Foot Deformities Caused by Nerve Damage

When peripheral nerves are damaged, muscle weakness can develop in the feet. This can lead to deformities such as hammertoes and bunions, which increase pressure points on the skin.

Over time, these changes may worsen nerve pain and contribute to ulcer formation. The combination of altered structure and reduced sensation creates a cycle of injury and delayed healing.

Daily Diabetic Foot Care

Daily care is essential to prevent complications. Inspect your feet for cuts, redness, or swelling. Wash with lukewarm water and dry thoroughly. Moisturize to prevent cracking, but avoid areas between the toes. Trim nails carefully, and never treat corns or calluses at home. These steps help prevent peripheral neuropathy from progressing into serious infections.

How to Protect Your Feet from Injury

Some ways to protect your feet from injury include always wearing protective footwear, even indoors, and avoiding stepping on sharp objects. Check shoes for debris before wearing them and avoid walking barefoot to reduce injury risk.

Some peripheral neuropathy treatments, such as transcutaneous electrical nerve stimulation, may help relieve pain in certain patients. Maintaining good blood pressure and blood flow also supports nerve health and reduces complications.

Managing Diabetes to Prevent Complications

Proper diabetes management is key to preventing the progression of peripheral neuropathy. Maintaining stable blood sugar levels reduces damage to sensory nerves and improves healing. 

MLS Laser Therapy may be beneficial for some patients experiencing diabetic peripheral neuropathy. This non-invasive treatment uses targeted light energy to help reduce inflammation, improve circulation, and relieve nerve-related discomfort in the feet and lower extremities. Many patients report reduced pain, tingling, and burning sensations following a series of treatments. 

Some patients may also benefit from EBM supplementation as part of a comprehensive treatment plan for diabetic peripheral neuropathy. EBM supplementation may help support nerve health and complement other treatment strategies aimed at reducing symptoms and improving overall function.

A healthy diet, regular exercise, and medication adherence help reduce nerve pain and improve circulation. Addressing vitamin deficiencies may also support nerve function and reduce the progression of peripheral nerve damage.

When to See a Podiatrist

You should see a podiatrist if you notice persistent numbness, tingling, wounds that do not heal, or severe pain in your feet. Early peripheral neuropathy diagnosed by a specialist can prevent complications and improve outcomes. Prompt care is essential to protect mobility and avoid long-term damage.

Protecting Your Steps for the Long Run

Peripheral neuropathy is a serious complication of diabetes, but it does not have to lead to severe outcomes. With proper management of blood sugar, routine foot care, and early treatment, patients can reduce risks and maintain healthy mobility. Support from a podiatric specialist ensures that small issues do not become major problems.

For expert evaluation and compassionate care, Bluebonnet Foot and Ankle Institute is here to help you manage diabetic neuropathy and protect your long-term foot health. Call our office in Austin, TX, today to schedule your appointment.

Originally written by Dr. Babak Kaviani in May 2024

Rewritten in June 2026

FAQs About Peripheral Neuropathy

What causes diabetic neuropathy?

High blood sugar damages peripheral nerves over time, leading to loss of sensation and nerve pain.

Symptoms include numbness, tingling, muscle weakness, and burning or severe pain in the feet.

Yes, maintaining healthy blood sugar levels and proper foot care can help prevent peripheral neuropathy.

Because reduced sensation can hide injuries, increasing the risk of infection and complications.

You should seek care if you notice wounds, persistent numbness, or worsening nerve pain.