Diabetic sores are skin wounds that can occur in people living with diabetes. They are especially concerning when they appear on the feet or lower legs because diabetes may affect sensation, blood circulation, and the body's natural healing process. Recognising a sore early and obtaining the right medical care can help prevent it from becoming more serious.

What Causes Diabetic Sores?

Diabetes can contribute to skin problems in several ways. Persistently high blood glucose levels can damage nerves and blood vessels over time. Nerve damage, known as peripheral neuropathy, may reduce sensation in the feet, making it difficult to notice injuries.

A small blister, scratch, or pressure spot can develop into an open sore if it is not identified. Poor circulation may further delay healing by reducing the supply of oxygen and nutrients to the affected area.

Other contributing factors include dry or cracked skin, ill-fitting footwear, repeated friction, and previous foot wounds.

Not every skin sore in a person with diabetes is caused directly by diabetes. A healthcare professional can assess the wound and identify possible contributing conditions.

Common Signs and Symptoms

Diabetic sores may look different depending on their location and severity. They can begin as blisters, small cuts, areas of broken skin, or open wounds that remain unhealed.

Watch for:

• Redness or unusual skin discolouration.

• Swelling or warmth around a wound.

• Fluid, pus, or an unpleasant smell.

• Skin cracks or blisters.

• A wound that becomes larger or deeper.

• Darkened tissue or changes in skin temperature.

Some people with diabetic nerve damage may not feel pain around a sore. Therefore, checking the skin regularly is important even when the feet feel normal.

How Are Diabetic Sores Treated?

Treatment depends on the location, depth, circulation, and presence of infection. A clinician may clean the wound, recommend an appropriate dressing, assess blood flow, and advise on reducing pressure on the affected area.

If a bacterial infection is diagnosed, antibiotics may be necessary. More severe wounds may require specialist wound care or further treatment to address circulation problems.

Avoid squeezing a sore, cutting away skin, or applying strong antiseptics and unverified remedies. These actions can damage tissue or delay proper treatment.

Daily Care and Prevention

People with diabetes can take practical steps to reduce their risk of skin injuries. Examine the feet daily, including the soles and spaces between the toes. Use a mirror or ask someone for assistance if necessary.

Wash your feet gently and dry them carefully, especially between the toes. Apply moisturiser to dry skin, but avoid leaving it between the toes where excess moisture can encourage skin problems.

Wear comfortable, well-fitting shoes and clean socks. Avoid walking barefoot, and never use heating pads on feet with reduced sensation.

Regular diabetes reviews and professional foot examinations can help identify risk factors before a wound develops.

When to Contact a Healthcare Professional

Seek prompt medical advice if you notice a new sore on your foot or lower leg and have diabetes. Do not wait for the wound to heal without assessment.

Spreading redness, pus, fever, rapidly increasing swelling, severe pain, or blackened tissue requires urgent medical attention. If you feel seriously unwell, seek emergency care.

Conclusion

Diabetic sores can develop from minor skin injuries, but diabetes-related nerve damage and circulation problems may make them harder to heal. Daily skin checks, appropriate footwear, and timely professional care are essential parts of prevention.

If you have diabetes, speak with your healthcare team about your personal foot-care routine and the steps you should take if a wound appears.