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Diabetic foot ulcer

Also called: Diabetic foot ulcer, diabetic foot infection

An open sore on the foot in someone with diabetes. It can become seriously infected, so it needs care quickly.

CheckFeet every day
DangerInfection, amputation

Overview

Numb feet from nerve damage mean small cuts can go unnoticed, and poor blood flow slows healing.

Infected foot ulcers are a leading cause of amputation, so fast care matters.

Symptoms

Common signs:

  • Sore on the foot with diabetes

Less common

  • Drainage
  • Smell

When to get medical care

Call 911Fever, spreading redness, or black tissue.
Get care todayNew foot sore.
See a doctor soonSlow-healing sore.

Causes

Numbness, poor blood flow.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Diabetes

Possible complications

Diagnosis

A clinician examines.

Tests

Tests, if needed:

  • X-ray:

Treatment

Take pressure off.

Self-care

  • Don't walk on it
  • Keep it clean
  • Control blood sugar

Medicines

Medicines that may help:

MedicineHelps withGood to know
Antibiotics
Infection

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

  • Daily foot checks

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to a podiatrist (foot doctor).

Living with it

  • Check your blood sugar as your care team advises.
  • Check your feet every day for cuts or sores.
  • Wear a medical ID and carry a fast sugar, like glucose tabs.
  • Get a yearly eye exam and kidney test.
  • Long-term illness can affect mood. Tell your doctor if you feel down or anxious.

Support groups and helplines

Back to school, work, or sports

  • Most people can keep working or going to school.
  • Ask about changes that help, like extra breaks or a flexible schedule. Workers may be covered by the ADA. Students may get a 504 plan.

Children, pregnancy, and older adults

  • People with diabetes: Daily foot checks are key.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • This condition needs closer checkups during pregnancy. Plan ahead with your doctor.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

For caregivers

  • Go to visits when you can and take notes.
  • Keep a list of medicines, allergies, and doctors in one place.
  • Learn the warning signs that need fast care.
  • Take breaks and ask for help. Caregivers need care too.

Outlook

Heals with care.

Most ulcers heal with pressure relief and care.

Getting ready for your visit

Bring a list of your symptoms and medicines.

Questions to ask

  • Do I need special shoes?
  • Should I see a foot specialist?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Diabetic foot ulcer

Sources

Last updated 2026-11-12.