🦶 Men's Health

Diabetic Foot Care Nigeria — Preventing Amputation

Q: Why do diabetic foot wounds not heal?

Three main reasons: (1) Neuropathy means the patient doesn't feel the wound and continues walking on it, which prevents healing; (2) High blood sugar impairs immune cells and collagen formation needed for healing; (3) Peripheral arterial disease reduces the blood supply delivering oxygen and nutrients to the wound. All three must be addressed simultaneously.

Q: Is amputation inevitable if I get a diabetic foot ulcer?

No — with prompt, appropriate treatment, the majority of diabetic foot ulcers heal without amputation. The key is seeking treatment immediately when a wound appears, before infection becomes established and before the wound tracks deep to bone. Studies show that multidisciplinary diabetic foot care reduces amputation rates by 50–85%.

Q: Can I use any cream or local remedy on a diabetic foot wound?

Do not apply traditional preparations, strong antiseptics (hydrogen peroxide, iodine at strong concentration), or herbal preparations to diabetic foot wounds — these damage new tissue and impair healing. Saline (clean salt water) or chlorhexidine solution for wound cleaning, and appropriate sterile dressings, are the recommended approach. See a doctor or wound care nurse.

Q: Is it safe for a diabetic to walk barefoot in the house?

No — not even inside the house. Foreign objects on the floor (stones, small objects, insect bites), rough floor surfaces, and sharp edges of furniture cause injuries that go unnoticed due to neuropathy. Wear clean protective slippers or socks at all times inside the house. This single measure prevents a significant number of diabetic foot ulcers.

Daily foot care that can save your leg — a critical guide for Nigerian diabetics

Diabetic foot complications — infections, ulcers, and gangrene — are the leading cause of non-traumatic lower limb amputation in Nigeria. An estimated 15% of diabetics will develop a foot ulcer during their lifetime, and up to 85% of diabetes-related lower limb amputations are preceded by a foot ulcer that could have been prevented or treated earlier. The underlying factors — peripheral neuropathy (nerve damage causing loss of protective sensation) and peripheral arterial disease (reduced blood flow) — combine to make even minor injuries catastrophic: the patient cannot feel a wound forming, and the poor blood supply means it cannot heal. With daily foot care and regular podiatry review, most amputations are preventable.

Signs and Symptoms

✓ Diabetic neuropathy signs (reduced protective sensation): numbness, tingling, burning, or pain in feet. Or complete loss of sensation — cannot feel pain from injuries

✓ Peripheral arterial disease signs: cold feet, pallor, absent foot pulses, leg pain on walking that stops with rest (claudication), non-healing wounds

✓ Diabetic foot ulcer: open sore, often on the sole of the foot under a pressure point or between toes. May be painless — the patient is unaware

✓ Charcot foot: neuropathic fractures and joint destruction — foot becomes hot, swollen, and deformed without significant pain

✓ Infected diabetic foot: pus, spreading redness, fever, black tissue (gangrene) — emergency

Risk Factors

HbA1c persistently > 9% — poor control accelerates neuropathy and arterial disease
Diabetes duration > 10 years
Peripheral neuropathy (loss of protective sensation)
Peripheral arterial disease (reduced blood flow)
Previous foot ulcer or amputation — highest risk factor for further ulceration
Smoking — dramatically accelerates arterial disease
Poorly fitting footwear or walking barefoot
Visual impairment — cannot inspect feet
Renal failure — further impairs wound healing

When to Seek Help

Any break in the skin on a diabetic's footEven the smallest cut, blister, or wound — show to a doctor or nurse. What looks minor can become a limb-threatening infection within days

Redness, warmth, or swelling around a foot woundInfection — requires urgent assessment and antibiotics within 24 hours. Do not wait

Black or dark tissue on the foot or toesGangrene — emergency vascular surgery assessment immediately

Fever with any foot wound in a diabeticSpreading infection or sepsis — emergency hospital admission

Annual diabetic foot examinationEvery diabetic must have their feet examined by a healthcare professional at least annually — checking sensation, pulses, and skin condition

Tests & Diagnosis

🧪 10g monofilament test

A standard monofilament pressed against the foot — inability to feel it indicates loss of protective sensation. Simple, cheap, done in any diabetes clinic

🧪 Vibration sense (128 Hz tuning fork)

Loss of vibration sense at the big toe indicates peripheral neuropathy

🧪 Ankle-brachial index (ABI)

Blood pressure ratio between ankle and arm — ABI < 0.9 indicates peripheral arterial disease. Done with a Doppler probe at vascular surgery clinics

🧪 Wound depth probing

Probing a foot wound with a sterile blunt probe — if bone is felt (probe-to-bone test positive), osteomyelitis is very likely

🧪 X-ray of foot

Gas in tissues = anaerobic infection. Bone destruction = osteomyelitis. Charcot changes

🧪 MRI of foot

Most sensitive for osteomyelitis — available at tertiary hospitals

🧪 Blood glucose and HbA1c

Poor control worsens wound healing — must be optimised during treatment

Treatment Options

Daily foot inspection and hygiene

Check every inch of both feet daily (use a mirror for the sole). Wash in lukewarm water (not hot — cannot feel burns). Dry thoroughly between toes. Moisturise dry skin (not between toes — maceration risk). Cut nails straight across — never at corners

Appropriate footwear

Wear protective shoes at all times — never walk barefoot. Wide-fitting, closed-toe shoes with soft insoles. Diabetic footwear (extra-depth, cushioned) where available. Check inside shoes before putting on — foreign bodies cause ulcers

Diabetic foot ulcer management

Offloading: total contact cast or removable cast walker removes pressure from the ulcer — the single most important treatment. Debridement: removal of dead tissue. Wound dressings appropriate to wound type. Infection: antibiotics (flucloxacillin + metronidazole for mild infection; co-amoxiclav or piperacillin-tazobactam for severe)

Vascular intervention

If arterial disease contributing — angioplasty or bypass surgery restores blood flow to promote healing. Vascular surgery centres: LUTH, UCH, National Hospital Abuja

Blood sugar optimisation during wound treatment

Target HbA1c < 7.5% while wound healing. Consider insulin therapy even in type 2 diabetes to achieve rapid glucose control

Multidisciplinary diabetic foot team

Diabetologist + podiatrist + vascular surgeon + orthopaedic surgeon + microbiologist. Available at most Nigerian teaching hospitals with diabetes centres

Frequently Asked Questions

Why do diabetic foot wounds not heal?

Three main reasons: (1) Neuropathy means the patient doesn't feel the wound and continues walking on it, which prevents healing; (2) High blood sugar impairs immune cells and collagen formation needed for healing; (3) Peripheral arterial disease reduces the blood supply delivering oxygen and nutrients to the wound. All three must be addressed simultaneously.

Is amputation inevitable if I get a diabetic foot ulcer?