Peripheral artery disease (PAD) is a condition where the arteries that supply blood to your limbs become narrowed or blocked. While many people experience mild symptoms like leg pain during walking, PAD can progress to a severe stage called critical limb ischemia (CLI). Dr. Ravul Jindal emphasizes that CLI is a serious condition that can threaten limb health and requires urgent medical attention.

What is Critical Limb Ischemia?

  1. Severe Blood Flow Restriction: CLI occurs when blood flow to the legs or feet is extremely limited due to advanced arterial blockage.
  2. Persistent Pain: Unlike mild PAD, CLI often causes pain even while at rest, especially in the feet or toes.
  3. High Risk of Complications: Without treatment, CLI can lead to non-healing wounds, ulcers, or gangrene, sometimes resulting in amputation.

Causes and Risk Factors

  1. Advanced PAD: CLI is usually the result of long-standing, untreated PAD.
  2. Diabetes and Hypertension: High blood sugar and high blood pressure increase artery damage.
  3. Smoking: Tobacco use accelerates atherosclerosis, narrowing arteries further.
  4. High Cholesterol and Age: Elevated cholesterol and older age are major contributors to severe PAD.

Signs and Symptoms

  1. Resting Leg Pain: Constant pain in the feet or lower legs, especially at night.
  2. Non-Healing Wounds: Sores or ulcers on the toes, feet, or legs that do not heal.
  3. Skin Changes: Pale, bluish, or shiny skin; sometimes hair loss on legs.
  4. Coldness in Limbs: Legs or feet may feel unusually cold due to poor circulation.

Treatment Options

  1. Lifestyle Changes: Quitting smoking, managing diabetes, controlling blood pressure, and maintaining a healthy diet.
  2. Medications: Drugs that improve blood flow, prevent clotting, or reduce cholesterol.
  3. Minimally Invasive Procedures: Angioplasty or stenting to open blocked arteries.
  4. Surgical Interventions: Bypass surgery may be necessary in severe cases to restore circulation.

Preventive Measures

  1. Regular Screening: Especially for people with diabetes, hypertension, or a history of smoking.
  2. Foot Care: Check feet daily for cuts, ulcers, or colour changes.
  3. Exercise: Supervised walking programs can improve circulation and overall limb health.


Critical limb ischemia is the most severe form of PAD and should never be ignored. Early recognition, proper management, and timely medical care can prevent serious complications and preserve limb health. Consult our experts to assess your PAD risk and protect your limb health.

March 11, 2026 Blog