Site Map

Diabetes and nerve damage

Diabetic neuropathy; Diabetes - neuropathy; Diabetes - peripheral neuropathy

Nerve damage that occurs in people with diabetes is called diabetic neuropathy. This condition is a complication of diabetes.

Images

Diabetes and nerve damage
Central nervous system and peripheral nervous system

I Would Like to Learn About:

Causes

In people with diabetes, the body's nerves can be damaged by decreased blood flow and a high blood sugar (glucose) level. This condition is more likely when the blood sugar level is not well controlled over time.

About one half of people with diabetes develop nerve damage. Symptoms often do not begin until many years after diabetes has been diagnosed. Some people who have diabetes that develops slowly already have nerve damage when they are first diagnosed.

People with diabetes are also at higher risk for other nerve problems not caused by their diabetes. These other nerve problems won't have the same symptoms and will progress in a different manner than nerve damage caused by diabetes.

Symptoms

Symptoms often develop slowly over many years. The types of symptoms you have depend on the nerves that are affected.

Nerves in the feet and legs are most often affected. Symptoms often start in the toes and feet, and include tingling or burning, or deep pain. Over time, nerve damage can also occur in the fingers and hands. As the damage gets worse, you may lose feeling in your toes, feet, and legs. Your skin may become numb. Because of this, you may:

When the nerves that control digestion are affected, you may have trouble digesting food due to reduced movement of the stomach (gastroparesis). This can make your diabetes harder to control. Damage to nerves that control digestion almost always occurs in people with severe nerve damage in their feet and legs. Symptoms of digestion problems include:

When nerves in your heart and blood vessels are damaged, you may:

Other symptoms of nerve damage are:

Exams and Tests

Your health care provider will do a physical exam. The exam may find that you have the following:

Tests that may be ordered include:

Your provider should check to see if your blood vitamin B12 level is normal, as low levels can contribute to neuropathy symptoms.

Treatment

Follow your provider's advice on how to slow diabetic nerve damage.

Control your blood sugar (glucose) level by:

To treat the symptoms of nerve damage, your provider may prescribe medicines to treat:

If you're prescribed medicines for symptoms of nerve damage, be aware of the following:

When you have nerve damage in your feet, the feeling in your feet can be reduced. You can even have no feeling at all. As a result, your feet may not heal well if they are injured. Caring for your feet can prevent minor problems from becoming so serious that you end up in the hospital.

Caring for your feet includes:

Support Groups

Many resources can help you understand more about diabetes. You can also learn ways to manage your diabetic nerve disease.

More information and support for people with diabetes and their families can be found at :

Outlook (Prognosis)

Treatment relieves pain and controls some symptoms.

Other problems that may develop include:

When to Contact a Medical Professional

Contact your provider if you develop any symptoms of diabetic neuropathy.

Related Information

Diabetes
Blood sugar test
Peripheral
Numbness and tingling
Type 2 diabetes - what to ask your doctor
Diabetes - foot ulcers

References

American Diabetes Association Professional Practice Committee. 12. Retinopathy, neuropathy, and foot care: standards of care in diabetes-2024. Diabetes Care. 2024;47(Suppl 1):S231-S243. PMID: 38078577 pubmed.ncbi.nlm.nih.gov/38078577/.

Brownlee M, Aiello LP, Sun JK, et al. Complications of diabetes mellitus. In: Melmed S, Auchus RJ, Goldfine AB, Koenig RJ, Rosen CJ, eds. Williams Textbook of Endocrinology. 14th ed. Philadelphia, PA: Elsevier; 2020:chap 37.

BACK TO TOP

Review Date: 2/10/2023  

Reviewed By: Sandeep K. Dhaliwal, MD, board-certified in Diabetes, Endocrinology, and Metabolism, Springfield, VA. Internal review and update on 02/20/2024 by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

ADAM Quality Logo
Health Content Provider
06/01/2025

A.D.A.M., Inc. is accredited by URAC, for Health Content Provider (www.urac.org). URAC's accreditation program is an independent audit to verify that A.D.A.M. follows rigorous standards of quality and accountability. A.D.A.M. is among the first to achieve this important distinction for online health information and services. Learn more about A.D.A.M.'s editorial policy, editorial process and privacy policy. A.D.A.M. is also a founding member of Hi-Ethics. This site complied with the HONcode standard for trustworthy health information from 1995 to 2022, after which HON (Health On the Net, a not-for-profit organization that promoted transparent and reliable health information online) was discontinued.

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- 2024 A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.

A.D.A.M. content is best viewed in IE9 or above, Firefox and Google Chrome browser.