Feet are where diabetes often shows itself quietly. A small blister from new chappals, a crack in the heel, or a corn cut with a blade can turn into an ulcer within days when nerves and blood flow are affected, and many people do not feel it happening.
For how diabetes is diagnosed and treated overall, read our diabetes guide covering symptoms, tests and treatment.
This page covers the early signs in the feet, the checks your doctor should do, and the daily care that prevents most problems. An open wound, a foot that turns red, hot, swollen or dark, or a foot with spreading infection needs medical care within 24 hours, not home treatment.
Why diabetes affects the feet
Three changes work together, and the Indian Council of Medical Research (ICMR) 2018 guideline asks doctors to examine the feet at every visit because of them:
- Nerve damage, or neuropathy. Long-term high sugar damages the nerves, starting at the toes. You may feel tingling or burning, or you may slowly lose feeling, so injuries go unnoticed.
- Reduced blood flow. Narrowed arteries in the legs, called peripheral arterial disease, mean less oxygen reaches the feet and wounds heal slowly.
- Infection. High sugar weakens the body's response to infection, so a small break in the skin can become infected quickly.
Nerve damage can also dry the skin by reducing sweating, change the shape of the foot, and alter how pressure falls when you walk. That is why corns, calluses and cracks matter more with diabetes.
Early signs of diabetic foot problems
Most of these develop slowly and are easy to dismiss as "age" or "tiredness". The National Health Service (NHS) and ICMR list these as signs to report:
- Tingling, pins and needles or burning, often worse at night, sometimes like walking on sand or cotton.
- Numbness: not feeling a stone in your chappal, not noticing how hot the bath water is, or slippers slipping off without your noticing.
- Dry, cracked skin, especially deep heel cracks, and hard skin or calluses at pressure points.
- Cramping pain in the calf or buttock while walking that eases after a few minutes of rest, a sign of reduced blood flow.
- Cold feet, pale or bluish colour, shiny skin or hair loss on the legs and feet, and slow-growing toenails.
- Cuts, blisters or sores that heal slowly, or keep coming back in the same place.
- Thick, discoloured nails or fungal infection between the toes.
- A change in foot shape, such as clawed toes or a collapsing arch.
These signs can appear before diabetes is diagnosed. Our guide to diabetes symptoms and early signs covers the rest of the body.
Red flags: when a foot problem is urgent
| What you notice | What it may mean | What to do |
|---|---|---|
| An open wound, blister or sore, even painless | A diabetic foot ulcer starting | See a doctor within 24 hours; ICMR advises referral to a foot care team within 24 hours |
| Redness, warmth, swelling, pus or a bad smell | Infection | Same-day care; severe infection may need hospital treatment |
| A hot, red, swollen foot without much pain, sometimes after a minor twist | Charcot foot, where weakened bones and joints collapse | Same-day review; keep weight off the foot until assessed |
| A toe or area turning black or blue | Blocked blood supply | Emergency care |
| Burning leg pain at rest, worse at night or when the legs are raised | Severely reduced blood flow | Urgent review |
| Fever, chills or high sugar with any foot wound | Spreading infection | Emergency care |
Do not wait for pain. With nerve damage, a serious problem can feel like nothing at all.
Foot checks your doctor should do
The American Diabetes Association (ADA) 2026 standards recommend a full foot examination at least once a year for everyone with diabetes, and at every visit for people at higher risk. ICMR describes the same checks:
- Looking at the skin, nails, shape of the foot and your footwear. Take off socks and shoes at every visit, even if no one asks.
- A 10 g monofilament test. A thin nylon thread is pressed on parts of the sole. Not feeling it means you have lost protective sensation.
- Vibration sense, using a 128 Hz tuning fork or a vibration meter.
- Feeling the foot pulses at the ankle and top of the foot. Weak or absent pulses suggest reduced blood flow and need further tests.
Based on these, ICMR sorts feet into risk groups. Low-risk feet need a check every year. Feet with reduced sensation or weak pulses need checks at least yearly, often more. High-risk feet, with past ulcers, calf pain on walking or Charcot foot, need review every 6 months or more often, and active foot disease needs a specialist foot team at least weekly.
Daily foot care: what to do and what to avoid
ICMR's list of foot care do's and don'ts is short and practical. Most of it takes two minutes a day.
Do
- Check your feet every day, including the soles and between the toes. Use a mirror, or ask a family member if you cannot see well or bend easily.
- Wash your feet daily in lukewarm water, test the water with your elbow or a thermometer, not your foot, and dry well between the toes.
- Apply moisturiser to the tops and soles after drying, but not between the toes.
- Check inside your footwear for stones, nails or torn lining before putting it on.
- Cut nails straight across and file the edges; if you cannot see or reach, have someone trained do it.
- Show your feet to your doctor at every visit, and report any new mark promptly.
Avoid
- Walking barefoot, including at home, on hot roads or sand, and on temple floors for long periods; carry clean socks where footwear is not allowed.
- Hot fomentation, hot water bags, heaters or soaking feet in hot water.
- Corn caps, corn plasters, acids or blades for corns and calluses; get them treated by a doctor or podiatrist.
- Smoking and heavy drinking, which worsen blood flow and nerve damage.
- Ignoring small cuts or blisters "because it doesn't hurt".
Choosing footwear that protects your feet
Many ulcers in India start from footwear: hard rubber chappals with a toe post, tight new shoes for a wedding, or worn soles with nails coming through. ICMR advises buying footwear in the evening, when feet are slightly larger, changing worn-out footwear regularly, and not wearing new footwear for more than a few hours a day at first.
- Choose closed or covered footwear with a cushioned sole, a firm back and enough room for the toes.
- Avoid toe-post designs if they rub, and high heels or pointed shoes.
- Wear clean cotton socks without tight bands, and change them daily.
- If your feet are numb, have changed shape or have had an ulcer, ask your doctor about custom footwear or insoles.
Steady sugar levels help nerves and healing too. Our Indian diabetes diet chart shows how to build meals that keep sugar steadier.
When to see a doctor
Our diabetes guide has the full list of warning signs.
Emergency: get help now
- A toe or part of the foot turning black or blue, or a foot wound with fever, chills or confusion.
Prompt review: within 24 hours
- Any open wound, blister or sore on the foot, even if painless.
- A red, hot or swollen foot, pus, a bad smell or spreading redness.
Routine review
- New tingling, burning, numbness or calf pain on walking.
- You have not had a monofilament test and foot pulse check in the past year.
Not sure who to see? Our guide to which doctor to see for diabetes explains the roles of the general physician, diabetologist and foot care team.
How Disha can help
Disha is an AI health coach that chats and calls in Hindi, English and Hinglish. After an onboarding call of about 15–20 minutes, conducted by Disha itself, it can remind you to check your feet daily, help you keep food and walking habits that steady your sugar, and nudge you to show anything new to your doctor. Disha does not diagnose, treat wounds or provide emergency care, and it does not replace your doctor. Read how Disha coaching works.
This is not medical advice. This page is general information for adults. Foot wounds in diabetes can worsen quickly and need a doctor's assessment, not home remedies. If you have numbness, poor blood flow or a past ulcer, follow your foot care team's plan. In an emergency, call 112.
Frequently asked questions
What are the first signs of diabetes in the feet?
The first signs are usually tingling, pins and needles, burning or numbness, starting in the toes and often worse at night. Others are dry, cracked skin, calf pain while walking that eases with rest, cold or discoloured feet, and cuts that heal slowly. Some people notice nothing at all, which is why yearly foot checks matter.
Why do I have burning feet at night with diabetes?
Burning, especially at night, is a common symptom of nerve damage from long-term high sugar. Low vitamin B12, which can happen with long-term metformin, thyroid problems and alcohol can cause or worsen it. Tell your doctor, who may check your sugar control, B12 and other causes, and can prescribe medicines for nerve pain if needed.
Can diabetes feet problems be reversed?
Nerve damage that has already happened usually cannot be fully reversed, but better sugar, blood pressure and cholesterol control can slow it, and symptoms such as burning can be treated. Ulcers can heal with proper care, and most can be prevented with daily checks, good footwear and early treatment of small problems.
Is it safe to soak my feet in warm water?
Washing in lukewarm water is fine; long soaks and hot water are not. If you have reduced feeling, you may not notice that the water is hot enough to burn, and soaking softens the skin, making cracks and infection more likely. Test the temperature with your elbow, wash briefly, and dry carefully between the toes.
Can I remove a corn at home if I have diabetes?
No. ICMR advises against corn caps, corn plasters, chemical treatments and blades, because they can create a wound that turns into an ulcer. Corns and calluses are a sign of pressure, often from footwear. Have them treated by a doctor or podiatrist, and ask about footwear that takes the pressure off.
How often should feet be checked by a doctor?
Everyone with diabetes should have a full foot examination at least once a year, with a monofilament test and pulse check. People with reduced feeling, poor blood flow, deformity or a past ulcer need checks more often, every 6 months or at each visit. Remove your socks and shoes at every visit so the doctor can look.
Sources
- Indian Council of Medical Research. ICMR Guidelines for Management of Type 2 Diabetes. 2018. Supports: foot examination at every visit; 10 g monofilament, vibration and pulse checks; foot risk groups and review frequency; referral within 24 hours for ulceration; foot care do's and don'ts, including daily inspection with a mirror, lukewarm water, moisturiser, no barefoot walking, no hot fomentation, no corn plasters or blades, buying footwear in the evening and limiting new footwear.
- American Diabetes Association Professional Practice Committee. 12. Retinopathy, Neuropathy, and Foot Care: Standards of Care in Diabetes—2026. 2026. Supports: yearly comprehensive foot evaluation and more frequent checks in high-risk feet; monofilament and 128 Hz tuning fork testing; symptoms of neuropathy and peripheral arterial disease; Charcot foot; self-care education and footwear.
- NHS. Peripheral neuropathy. Current page. Supports: numbness, tingling and burning or shooting pain in the feet; loss of balance; seeing a doctor for a foot wound that is not healing; regular checks for people with diabetes.
- NHS. Peripheral arterial disease (PAD). Current page. Supports: leg pain on walking that eases with rest; hair loss on the legs and feet; brittle, slow-growing toenails; non-healing ulcers; colour change; burning pain at rest in severe disease.
- Ministry of Health and Family Welfare, Government of India, and National Health Mission. NP-NCD Training Module for Medical Officers. Accessed October 2026. Supports: non-healing foot ulcers and recurrent skin and nail infections as clues to diabetes; foot examination as part of routine complication screening.
Related reads
- Diabetes: symptoms, tests, treatment and Indian food: the full overview of diagnosis, treatment and red flags.
- Diabetes symptoms and early signs: what to watch for in the rest of the body.
- Diabetes medicine names: including metformin and vitamin B12.
- Which doctor to see for diabetes: including foot care teams.
- All diabetes articles: every Disha guide on diabetes in one place.
- BMI calculator with Indian cut-offs: one screening measure that does not capture waist or individual health.
