How often should you get a diabetic foot exam?

KEY TAKEAWAYS:

Most adults living with diabetes need a thorough diabetic foot exam at least once a year, plus a quick look at the feet during every routine health care visit. Neuropathy, poor circulation, foot deformities, or a history of ulcers or amputation shorten that interval, sometimes to every one to three months. A new sore, blister, or change in skin color is a reason to be seen promptly rather than to wait for the annual appointment.

Once a year is the baseline for any diabetic patient. A comprehensive diabetic foot exam, including sensation testing and a pulse check rather than a quick glance, belongs on the calendar every 12 months. That annual standard comes from the National Institute of Diabetes and Digestive and Kidney Diseases. In between those visits, the feet should be looked at briefly at every routine appointment, and you should perform at-home self checks. 

At The Foot Institute, our diabetic foot care podiatrists build your exam into a longer conversation about footwear, blood sugar, and what patients are seeing between visits. Dr. Efren Buff De La Rosa has served on the board of the El Paso Center for Diabetes for more than 25 years, and diabetes care has shaped how the practice approaches feet.

What happens during a diabetic foot exam?

A complete exam checks three things: whether the nerves in the feet still register sensation, whether blood is reaching the tissue, and whether the skin and structure of the foot have changed since last time. It usually takes 15 to 20 minutes and involves no needles, no imaging in most cases, and no recovery time.

A typical visit includes:

• A monofilament test, in which a thin nylon filament is pressed against several points on the sole. If you cannot feel it, protective sensation has been lost, which is the single strongest predictor of future ulcers.
• A tuning fork or biothesiometer check for vibration sense, which often fades before touch does.
• Pulse checks at the top of the foot and behind the ankle, sometimes with a handheld Doppler, to gauge circulation.
• A skin and nail inspection that includes the spaces between the toes, the heels, and the areas under calluses.
• A structural assessment looking for hammer toes, bunions, collapsed arches, or the early warmth and swelling of Charcot foot.
• A look at the shoes you walked in with, since worn treads and tight toe boxes explain a surprising share of foot wounds.

Trimming, callus reduction, and guidance on a daily diabetic foot care routine often happen at the same visit.

When is once a year not enough?

Annual is the floor, not the ceiling. Several findings move patients onto a shorter schedule, and the interval tightens as risk factors stack up. Here's what to specifically look out for before scheduling an appointment with an El Paso podiatrist.

Loss of sensation

If a monofilament test shows you cannot feel pressure on part of the foot, the warning system that normally reports a wound or blister is gone. Patients who have noticed tingling or numbness in the feet usually move to visits every three to six months.

Poor circulation

Weak pulses, cold feet, thin shiny skin, or cramping in the calves during walking all point toward peripheral artery disease. Reduced blood flow means a small break in the skin has less capacity to close on its own, and it often warrants a vascular referral alongside more frequent foot checks.

A previous ulcer or amputation

Someone who has healed one foot ulcer is at elevated risk of another in the same area. This group is often seen every one to three months, with attention paid to pressure relief through custom orthotics or prescription footwear. Prevention work matters here too, and our article on how to prevent diabetic foot ulcers before they start covers what that looks like day to day.

Changes in the shape of the foot

Toes that have begun to curl, a collapsing arch, or a foot that no longer fits shoes the way it used to create new pressure points. Deformity plus numbness is the combination that most often precedes a wound.

What should not wait for your annual exam?

Some findings need attention within days, not months. Contact a podiatrist or your health care provider promptly if you notice any of the following:

• A cut, blister, or sore anywhere on the foot, however small, if you have diabetes
• Redness, warmth, or swelling spreading outward from a sore
• Drainage that is yellow or green, or that has an unusual odor
• Skin or tissue that is darkening or turning black
• Fever or chills along with a foot wound
• A callus with dried blood inside it, which often signals a wound forming underneath
• A sudden change in the shape, color, or temperature of one foot

Wounds that linger past a couple of weeks deserve professional attention as well, and our article on a foot wound that won’t heal explains what tends to be slowing it down.

Why November is a practical month to schedule your Diabetic Foot Exam

November is American Diabetes Month, which makes it an easy anchor for an overdue appointment. It also falls near the end of most insurance plan years, so a deductible that has already been met may cover more of the visit than it would in January. If you already have an annual physical scheduled, booking the foot exam in the same stretch of weeks keeps both from slipping.