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Vasodilation is the widening of the blood vessels, a process that happens naturally in response to various conditions to ensure blood flow is directed to where it is needed. Vasodilation can be useful in treating some medical conditions.

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1. The Purpose of Vasodilation

Vasodilation occurs when the smooth muscle in the walls of the arteries and major veins relaxes. This enlarges the width or diameter of the vessel and allows more blood to flow through; as a result, the amount of oxygen and nutrients reaching the tissues and organs increases.

Diagram of the blood vessels in the leg c1a1p1c1o1m1 / Getty Images
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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.