Diabetic Foot Gangrene — Why Thousands Lose Limbs Needlessly (and How to Prevent It)

India has one of the highest rates of diabetes-related amputations in the world. Studies suggest up to 85% of these are preventable. Here is what every diabetic patient and their family needs to know.

The Scale of the Problem

India has over 100 million people with diabetes. Of these, approximately 15–25% will develop a diabetic foot problem at some point. Every 30 seconds, a limb is amputated somewhere in the world due to diabetes. In India, many of these amputations happen in patients who never received — or were never told about — vascular intervention that could have saved their leg.

Why Diabetic Patients Are Most at Risk

Diabetes attacks the legs from two directions simultaneously:

1. Peripheral neuropathy: High blood sugar damages the nerves supplying sensation to the feet. The patient loses the ability to feel pain — so injuries, blisters, and infections go unnoticed until they are severe.
2. Peripheral artery disease: Diabetes accelerates atherosclerosis, narrowing the arteries supplying the feet. Without adequate blood flow, even minor wounds cannot heal.

The combination is lethal: the patient cannot feel the wound developing, and the body cannot heal it. By the time the wound is noticed, gangrene may already be present.

The Warning Signs Family Members Must Watch For

• A cut, blister, or sore on the foot that has not healed in 14 days
• Any blackening or darkening of a toe or area of foot
• Foul smell from a foot wound
• One foot consistently colder than the other
• Constant burning pain in the foot at night
• Foot that turns red when hanging down and pale when elevated

Family members often notice these signs before the patient does (due to neuropathy). If you see any of these in a diabetic family member, take them to a vascular specialist immediately — do not wait.

The Treatment That Saves Limbs

When diabetic foot gangrene is caused by blocked arteries — which it almost always is — gangrene treatment without amputation in Lucknow is possible through angioplasty. Dr. Rohit Agarwal at Medanta has performed hundreds of limb-salvage procedures, opening arteries in the thigh, knee, calf, and even the tiny foot arteries to restore direct blood flow to gangrenous tissue.

What Patients and Families Can Do Right Now

• Check the feet of every diabetic family member daily — look between the toes
• Never ignore a wound that is not healing
• Keep blood sugar controlled — high HbA1c accelerates PAD
• Stop smoking — it doubles the risk of amputation in diabetics
• Get an ABI (ankle-brachial index) test annually — detects PAD before symptoms appear