How Does Diabetes Affect the Feet?

There are many ways in which dia­betes can take a toll on your feet. But with the right care, you can pro­tect your feet from dia­bet­ic-relat­ed foot problems.

When you have dia­betes, your health is always on your mind. You’re con­stant­ly think­ing about check­ing blood sug­ar, man­ag­ing symp­toms, and main­tain­ing your weight. But are you also think­ing about your feet?

Dia­betes and foot health might seem very dif­fer­ent, but they are deeply con­nect­ed. Dia­betes can affect almost every part of your body, and the feet are no excep­tion (espe­cial­ly if you have addi­tion­al risk fac­tors, like high cho­les­terol or obe­si­ty, or if you smoke). 


  • Up to half of peo­ple with dia­betes devel­op dia­bet­ic neu­ropa­thy, a type of nerve dam­age that often affects the feet.
  • Nerve and cir­cu­la­tion dam­age can cause numb­ness, tin­gling, pain, infec­tions, and slow-heal­ing wounds in the feet.
  • Untreat­ed foot prob­lems can esca­late into ulcers, infec­tions, or even gan­grene — some­times lead­ing to amputation.
  • You can low­er your risk by man­ag­ing blood sug­ar, cho­les­terol, and blood pres­sure, and by quit­ting smok­ing.
  • Dai­ly foot care is essen­tial: check your feet for cuts or sores, wear sup­port­ive shoes, and seek med­ical care if prob­lems arise.

How Dia­betes Affects the Feet

Over time, high blood sug­ar (blood glu­cose lev­els) from dia­betes can dam­age your nerves and the small blood ves­sels that nour­ish your nerves. The nerves may not receive enough blood to get the oxy­gen and nutri­ents they need to func­tion cor­rect­ly. Foot prob­lems arise when this dam­age makes its way down to your legs and feet.

Dia­bet­ic neu­ropa­thy (nerve dam­age) is the most com­mon dia­betes-relat­ed foot problem. 

Depend­ing on the type of dia­bet­ic neu­ropa­thy you have, you might expe­ri­ence numb­ness, tin­gling, pain, or burn­ing or shoot­ing pain in your low­er legs.

One of the major prob­lems with dia­bet­ic neu­ropa­thy is that it makes it dif­fi­cult to feel your feet. With­out sen­sa­tion in your feet, you might not notice pain, signs of infec­tion, or an injury. This delays diag­no­sis and treat­ment, which can cause severe and per­ma­nent damage.

In addi­tion to dia­bet­ic neu­ropa­thy, many peo­ple with dia­betes have prob­lems with cir­cu­la­tion due to dam­age to small blood ves­sels. They might also not get enough blood sup­ply to their skin and feet as a whole, which makes it dif­fi­cult for wounds to heal. 

Also read: 5 Dia­betes Myths — Debunked

Types of Dia­betes-Relat­ed Foot Problems

Nerve or cir­cu­la­tion dam­age from dia­betes can cause sev­er­al types of foot prob­lems. Some of the most com­mon ones include:

  • Blis­ters and ulcers (open sores)
  • Cal­lous­es and corns (thick, hard­ened lay­ers of skin)
  • Skin changes, like abnor­mal­ly dry, crack­ing feet (xero­sis) 
  • Infec­tions
  • Slow-heal­ing wounds

In addi­tion, if you don’t notice a foot injury and keep walk­ing on it, you might make the injury worse. This can cause your foot to become severe­ly deformed. 

The Impor­tance of Catch­ing Dia­bet­ic Foot Prob­lems Early

Since nerve dam­age devel­ops over many years, you might have very mild symp­toms (or no symp­toms at all) in the begin­ning stages. But even if a lit­tle numb­ness or tin­gling isn’t both­er­ing you, it’s impor­tant to pay atten­tion. Dia­bet­ic foot prob­lems that go untreat­ed can lead to severe complications.

Untreat­ed foot prob­lems can have a snow­ball effect. For exam­ple, if you don’t notice and treat corns or cal­lous­es, they can turn into foot ulcers (open sores). When ulcers are not treat­ed ear­ly on – espe­cial­ly if they’re infect­ed – they can severe­ly dam­age your foot. The prob­lem can be even worse if your dia­betes has led to poor cir­cu­la­tion in your feet, as this can make it more dif­fi­cult for ulcers to heal. If an infect­ed ulcer isn’t treat­ed or doesn’t heal well, you may need to have part of your foot or toe sur­gi­cal­ly removed (ampu­tat­ed). 

An esti­mat­ed 15% to 50% of foot ulcers in peo­ple with dia­betes become infect­ed, and about 20% of those infec­tions end up requir­ing amputation. 


A Word from Our Doctor: 

Every step mat­ters, pro­tect your feet!”

-Dr. Farheen Wahid, DPM, Board Cer­ti­fied Podi­a­trist spe­cial­iz­ing in com­pre­hen­sive foot and ankle care.


Dr. Wahid spe­cial­izes in dia­bet­ic foot prob­lems and com­pre­hen­sive foot and ankle care. Our expe­ri­enced podi­a­try team is ful­ly pre­pared to help patients with dia­betes pro­tect their feet and pre­vent seri­ous com­pli­ca­tions. Pri­or­i­tize your foot health today and sched­ule an appoint­ment with a Duly Health and Care Podi­a­trist today.

One of the most seri­ous com­pli­ca­tions of dia­betes is gan­grene. Gan­grene in the foot is a med­ical emer­gency that occurs when blood stops flow­ing to your foot and the tis­sue dies. It needs to be treat­ed imme­di­ate­ly to pre­vent bac­te­ria from spread­ing to oth­er organs or tis­sues and becom­ing life-threat­en­ing. If treat­ments don’t work or the gan­grene is advanced, you may need to get an entire toe or foot ampu­tat­ed to save your life. 

Also read: Podi­a­try, Foot & Ankle Surgery FAQs

Pre­vent­ing Dia­bet­ic Foot Problems

Man­ag­ing your blood sug­ar is one of the best ways to pre­vent dia­bet­ic foot prob­lems or stop nerve dam­age from get­ting worse. Keep­ing your blood sug­ar, blood pres­sure, and cho­les­terol lev­els in check can all help low­er your risk. 

You can also reduce your risk by main­tain­ing a healthy weight, stay­ing phys­i­cal­ly active, lim­it­ing alco­hol, quit­ting smok­ing, and tak­ing dia­betes med­ica­tion as prescribed.

Tak­ing Care of Your Feet When You Have Diabetes

The right foot care can help pre­vent prob­lems or catch them ear­ly so you can get med­ical care right away. 

  • Exam­ine your feet every day for cuts, cracks, blis­ters, sores, red­ness, and corns.
  • Wear the right footwear:
    • Choose com­fort­able shoes that have cush­ion­ing and sup­port for your arch, heel, and the ball of your foot.
    • Avoid high heels, nar­row shoes, and tight-fit­ting shoes.
    • Wear clean, dry socks (made of mois­ture-wick­ing material).
    • Don’t go barefoot.
  • Wash and dry your feet every day (but don’t soak them, since this can dry them out).
  • Don’t remove corns or cal­lous­es your­self (unless your provider shows you how to do so safely).
  • Keep your toe­nails trimmed, cut them care­ful­ly, and use an emery board to file sharp ends.

Also read: Nail Dis­or­ders

When to Get Med­ical Care

A dia­bet­ic foot prob­lem can become seri­ous quick­ly, so it’s impor­tant to get care as soon as pos­si­ble. Talk to your provider right away if you have:

  • Sores that aren’t healing
  • Dry, cracked skin
  • An inabil­i­ty to sense cold or heat in your feet
  • A loss of sensation
  • Burn­ing, pain, or tingling
  • Changes in tem­per­a­ture, col­or, foot shape, or toe­nails (thick and yel­low or ingrown nails)A fun­gal infec­tion between your toes
  • Hair loss on your low­er legs, feet, or toes

Get emer­gency care if you have signs of gan­grene, including: 

  • Skin turn­ing red, pur­ple, black, or green
  • Skin becom­ing cool, firm, pale, or ten­der to the touch
  • A crack­ing sound when you press on the skin
  • Blis­ters or sores that are bleed­ing or ooz­ing pus
  • A foot infec­tion that smells bad

Any time you’re con­cerned about foot prob­lems, don’t hes­i­tate to reach out to a podi­a­trist (a provider who focus­es on foot health). In addi­tion to treat­ing the prob­lem, they can help you con­tin­ue to man­age your dia­betes to avoid fur­ther foot issues. Talk­ing to your provider is always a step” in the right direction. 

Don’t wait for foot prob­lems to wors­en or lead to seri­ous com­pli­ca­tions. Take con­trol of your foot health today. Sched­ule an appoint­ment with a Duly Health and Care physi­cian who can assess your indi­vid­ual needs and devel­op a per­son­al­ized treat­ment plan to pro­tect your feet and pre­vent future complications.

Find a podi­a­trist near you

  • My personal practice style is patient centered, empathetic and evidence based. I strive to create a comfortable environment where patients feel heard and involved in their care decisions. I take time to explain diagnosis and treatment options clearly, and I tailor my approach to each individual. I value collaboration with my colleagues and believe in a multidisciplinary approach when appropriate. I'm also committed to ongoing learning and staying current with advancement in podiatric medicine to provide the best possible care.