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Disease Comparison

Compare similarities and differences between two diseases.

Peripheral Artery Disease

Moderate
2
Symptoms
3
Causes
0
Treatments
5
FAQs
VS

Cold Sores

Mild
2
Symptoms
2
Causes
0
Treatments
5
FAQs

Overview

Peripheral Artery Disease
Peripheral artery disease, or PAD, occurs when arteries outside the heart become narrowed or blocked, most often reducing blood flow to the legs and feet. Many people have few or no symptoms. When symptoms occur, they may include pain, aching, numbness, or heaviness in the legs during walking. Severe disease can cause poorly healing wounds and tissue damage.
Cold Sores
Cold sores are small, painful, fluid-filled blisters that usually develop on or around the lips and mouth. They are caused by herpes simplex virus and often recur after the initial infection because the virus remains inactive in nerve tissue. Outbreaks commonly heal within several days to a few weeks.

Symptoms

Shared
None
Only in Left Disease
Brittle Nails Unsteady Gait
Only in Right Disease
Eye Pain Sudden Weakness

Causes

Shared
None
Only in Left Disease
High Cholesterol Obesity Smoking
Only in Right Disease
Infection Stress

Diagnosis

Peripheral Artery Disease
Doctors diagnose peripheral artery disease using a medical history and physical examination, including checking pulses and circulation in the legs and feet. The ankle-brachial index, which compares blood pressure in the ankle and arm, is commonly used. Additional vascular or imaging tests may be performed when needed to determine the location and severity of narrowed or blocked arteries.
Cold Sores
Cold sores are usually diagnosed clinically from their characteristic appearance and symptoms, particularly grouped fluid-filled blisters around the lips or mouth. A healthcare professional may examine the affected area and ask about previous episodes and possible triggers. A swab or laboratory test may be considered when the appearance is unusual or the diagnosis is uncertain.

Prevention

Peripheral Artery Disease
Risk of peripheral artery disease can be reduced by avoiding tobacco and maintaining healthy blood pressure, cholesterol, blood sugar, body weight, and activity levels. Regular physical activity and a heart-healthy diet can help reduce atherosclerosis risk. People with diabetes or other cardiovascular risk factors should follow recommended treatment and monitoring plans to protect blood-vessel health.
Cold Sores
Avoiding direct contact with active cold sores and not sharing items that contact the mouth can reduce transmission. During an outbreak, avoid kissing and oral contact with others until lesions have healed. Identifying and reducing personal triggers such as excessive sun exposure or fatigue may reduce recurrences. People with frequent or severe outbreaks should discuss treatment options with a healthcare professional.

Risk Factors

Peripheral Artery Disease
Smoking is the most important risk factor for peripheral artery disease. Risk also increases with older age and conditions such as diabetes, high blood pressure, high cholesterol, heart disease, and previous stroke. A family history of vascular disease and other factors associated with atherosclerosis can also increase risk. Having PAD is associated with a higher risk of cardiovascular events.
Cold Sores
Cold sore outbreaks may be more likely during periods of physical or emotional stress, fever, illness, fatigue, or hormonal changes. Sun exposure and local irritation around the lips can also trigger recurrence. People with weakened immune systems may experience more frequent, severe, or persistent outbreaks.

Treatment

Peripheral Artery Disease
Treatment comparison will be available soon.
Cold Sores
Treatment comparison will be available soon.