Can peripheral neuropathy cause diabetic foot ulcer?

Peripheral neuropathy can reduce the ability to feel pain, heat and pressure in the feet. A tight shoe, a small stone or a minor cut may continue irritating the skin because the usual warning signal is reduced. Changes in foot shape or dry, cracked skin can add further pressure.

Diabetes can also affect healing and circulation, so an unnoticed wound may enlarge or become infected. Peripheral neuropathy is a contributor, not proof that an ulcer is present; the foot needs to be looked at directly.

Look at the tops, soles and spaces between your toes every day, using a mirror or another person if needed. Check shoes for rough areas before putting them on, wear well-fitting socks and footwear, and avoid barefoot walking. Wash and dry carefully, then moisturise dry skin without applying cream between the toes.

Do not cut corns or calluses yourself and do not use chemical corn treatments on numb skin. Keep diabetes reviews and follow the wound-care plan given by your clinical team.

Contact a clinician promptly for any break in the skin, blister, swelling, warmth, redness, drainage, new odour or colour change. Urgent assessment is needed if redness spreads, pain or swelling increases, the foot becomes very cold or pale, or you feel feverish or unwell.

Ask how often your feet should be examined, which footwear is suitable, and what to do with a blister or cut. Ask whether you need a podiatry review and how to check sensation and circulation at home.