Patient Education
Understanding Diabetic Foot
Diabetic foot ulcers, non-healing wounds and gangrene explained in plain language — what they are, why they happen, and when to seek help.
01
What Is a Diabetic Foot Ulcer?
A diabetic foot ulcer is an open wound or sore, most often on the sole or toes, that develops in a person living with diabetes. Reduced sensation in the foot can mean a small blister, crack or pressure point goes unnoticed until it has already broken the skin. Because healing can be slower in diabetes, a wound that would normally close in days may stay open for weeks.
02
Why Do Diabetic Wounds Heal Slowly?
Several factors can work together. Reduced circulation limits the oxygen and nutrients reaching the wound. Nerve damage (neuropathy) reduces pain signals, so injuries are noticed late and pressure continues on the area. Raised blood glucose can affect the body's ability to fight infection, and infection itself further delays tissue repair.
03
Early Warning Signs
Any new wound, blister or crack on the foot; redness or swelling; unusual warmth; changes in skin colour; discharge or an unusual smell; new numbness, tingling or pain; or a wound that is not visibly improving. Any of these deserve a professional look rather than a wait-and-watch approach.
04
What Is Gangrene?
Gangrene refers to tissue that has died, usually because blood supply to the area has been severely reduced or because of a serious infection. It may appear as darkened, black or discoloured tissue and can spread. Gangrene is a serious condition and needs prompt professional evaluation.
05
When Should You Seek Medical Attention?
Seek attention if a wound is not improving, if redness is spreading, if there is swelling, fever, foul-smelling discharge, worsening pain, or darkened tissue. If a foot problem is changing rapidly, treat it as urgent and seek immediate medical care.
06
Everyday Diabetic Foot Care
Check both feet daily, including between the toes and the soles. Wash and dry feet carefully, moisturise dry skin but not between the toes, avoid walking barefoot, wear well-fitting footwear, trim nails carefully, and keep blood sugar under regular review. Report any new change early.
Don't Ignore Sudden Changes in a Diabetic Foot
- Rapid swelling
- Spreading redness
- Severe or worsening pain
- Black or darkened tissue
- Foul-smelling discharge
- Fever or chills
- Sudden worsening of an existing wound
- Significant colour or temperature changes
Consultation
Don't Wait for a Foot Problem to Become More Serious.
If you are dealing with a diabetic foot ulcer, non-healing wound, gangrene or another concerning change in your foot, professional evaluation can help you understand your condition and available care options.