Can Continuous Foot Temperature Monitoring Prevent the Next Diabetic Ulcer?
New wearable technologies are allowing podiatrists to identify inflammatory hot spots before tissue breakdown becomes clinically visible.
Moheb Mikhael, DPM Candidate
Foot & Ankle / Podiatric Medicine
- Published
- Published Sep 14, 2026
- Last reviewed
- Last reviewed Sep 16, 2026
- Reading time
- 3 min read
- Audience
- Patients & clinicians
- Evidence level
- Moderate Evidence
Clinical summary
Plantar skin temperature asymmetry is one of the earliest measurable signs of inflammation under a neuropathic foot. Home thermometry has trial support in high-risk patients, and newer sensor socks and mats aim to make monitoring passive. The open questions are adherence, alert fatigue, and who responds to the alerts.
Patient view: plain-language reading.
Why temperature, and why the foot
In a foot with loss of protective sensation, repetitive pressure causes inflammation long before a patient feels anything. Inflamed tissue runs warmer. When one site on one foot is persistently warmer than the same site on the other foot, that asymmetry can be the first objective signal that tissue is under stress.
This matters because diabetic foot ulcers recur often after healing. Recurrence is common enough that many limb preservation teams now describe a healed ulcer as a patient in remission rather than a patient who is cured.
What the evidence shows
Randomized trials of home dermal thermometry in high-risk patients, starting with work by Lavery and colleagues, reported fewer ulcers when patients measured foot temperatures daily and reduced walking when asymmetry appeared. International Working Group on the Diabetic Foot guidance supports considering home temperature monitoring for people at moderate to high risk.
The weak point has always been adherence. Handheld thermometers require daily effort, good vision, and the ability to reach the foot. That is the gap newer sensor socks, mats, and insoles try to close.
Where the technology stands
Current approaches fall into three groups. Textile sensor socks measure continuously during wear. Mat-based systems take a reading when the patient stands on them for a short time each day. Instrumented insoles combine temperature with plantar pressure.
- Continuous wear offers more data but raises questions about battery life, laundering, and alert volume.
- Once-daily mat readings mirror the protocol used in the original trials.
- Pressure plus temperature may help explain why a hot spot appears, which can guide offloading.
What patients should know
Monitoring tools can give an early warning, but they do not heal skin or remove pressure. Daily foot checks, proper footwear, and regular visits with a podiatrist remain the foundation of prevention.
1 clinical section hidden in Patient view.
References
- 1.Lavery LA, et al. Home monitoring of foot skin temperatures to reduce the risk for diabetic foot ulceration. Diabetes Care. 2004;27(11):2642-2647.Source
- 2.Bus SA, et al. Guidelines on the prevention of foot ulcers in persons with diabetes (IWGDF 2023 update). Diabetes Metab Res Rev. 2024.Source
- 3.Armstrong DG, Boulton AJM, Bus SA. Diabetic foot ulcers and their recurrence. N Engl J Med. 2017;376:2367-2375.Source
Summaries are editorial. Verify details against the original publications.
Clinical Review. Written for clinicians and podiatric medical students. Editorial standards
Podiatrify provides educational information and risk guidance and does not provide a medical diagnosis. Symptoms involving severe pain, rapidly spreading infection, black or blue tissue, major trauma, loss of circulation, or systemic illness may require urgent medical evaluation.
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