These valves – or one-way, swinging-door like flaps called leaflets – act as a barrier to stop blood from leaking back down your veins, a condition called reflux. When damaged, the one-way ...

In varicose veins, the valves are often missing or impaired, and blood leaks back through the damaged valves. In some cases, weakness in the leg muscles that squeeze blood forward can also ...

For this process to occur, veins contain one-way valves that open and close, helping the blood flow against gravity toward the heart. If these valves become damaged and do not fully close ...

as veins weaken when you get older. A previous leg injury may damage the valves in a vein, resulting in becoming varicose. Your family history also plays a role, so if other family members have ...

Veins carry blood back to the heart. To prevent blood from flowing backward, they contain a one-way valve that closes once the blood passes through it. If this valve weakens or sustains damage ...

When it comes to caring for the health of our legs, a common concern is varicose veins. Often blue and bulging, these pesky ...

This condition develops when the one-way valves within veins become damaged or weakened, allowing blood to flow backward instead of maintaining its proper upward direction toward the heart.

According to the Cleveland Clinic, it happens when your leg veins become damaged and can't work as they should. Typically, valves in your leg help blood flow up to your heart, but vein disease ...

Not all are visible. They are caused by weak or damaged vein walls and valves. Veins have one-way valves inside them that open and close to keep blood flowing toward the heart. Weak or damaged ...