Diabetic Foot

Overview

Diabetic foot is a serious complication of diabetes mellitus that affects the feet due to poor blood circulation (peripheral vascular disease) and nerve damage (neuropathy). Reduced sensation and impaired healing increase the risk of ulcers, infections, and, in severe cases, gangrene. Early diagnosis and proper management are essential to prevent limb-threatening complications.

Causes

• Peripheral neuropathy (loss of sensation)
• Poor blood supply to the lower limbs
• Uncontrolled blood sugar levels
• Minor injuries or pressure sores
• Poor foot hygiene
• Ill-fitting footwear

Even a small wound can rapidly progress in diabetic patients.

Symptoms

• Numbness or tingling in feet
• Non-healing wounds or ulcers
• Swelling and redness
• Foul-smelling discharge
• Blackened skin (gangrene)
• Pain (may be absent in severe neuropathy)

Complications

• Infection
• Ulcer progression
• Gangrene
• Amputation

Diagnosis

• Clinical examination
• Blood sugar levels (HbA1c)
• Doppler study (to assess blood flow)
• Wound culture (if infection present)
• X-ray (to rule out bone infection)

Treatment

Treatment depends on severity. Medical management includes strict blood sugar control, antibiotics for infection, regular wound dressing, and offloading pressure from the affected area. Surgical management may involve debridement (removal of dead tissue), drainage of abscess, vascular procedures to improve circulation, and amputation in advanced gangrene cases. Early intervention significantly reduces the risk of amputation.

Conclusion

Diabetic foot is a preventable yet serious complication of diabetes. Early detection, proper wound care, and timely surgical intervention can save the limb and improve quality of life.