Your father?s symptoms suggest a common, highly manageable condition called intermittent claudication, often caused by Peripheral Artery Disease (PAD), where narrowed arteries restrict blood flow to the leg muscles during exercise. Another possibility is a pinched nerve in the lower back.\n\nTo manage this, his doctor may recommend: Medications: Antiplatelet drugs (like aspirin or clopidogrel) to prevent clots, statins (like atorvastatin) to protect blood vessels, or cilostazol to improve his pain-free walking distance. Lifestyle: A structured, gradual walking program.\n\nPlease schedule a visit with his doctor for a simple, painless blood pressure check in his legs to confirm the diagnosis and start a safe treatment plan.