Vein Therapy

What are Varicose Veins and Spider Veins?

Varicose (VAR-i-kos) veins are enlarged veins that can be blue, red, or flesh-colored. They often look like cords and appear twisted and bulging. They can be swollen and raised above the surface of the skin. Varicose veins are often found on the thighs, backs of the calves, or the inside of the leg. During pregnancy, varicose veins can form around the vagina and buttocks.

Varicose-Veins

Spider veins are like varicose veins but smaller. They also are closer to the surface of the skin than varicose veins. Often, they are red or blue. They can look like tree branches or spider webs with their short, jagged lines. They can be found on the legs and face and can cover either a very small or very large area of skin.

Varicose-Veins

What causes varicose veins and spider veins?

Varicose veins can be caused by weak or damaged valves in the veins. The heart pumps blood filled with oxygen and nutrients to the whole body through the arteries. Veins then carry the blood from the body back to the heart. As your leg muscles squeeze, they push blood back to the heart from your lower body against the flow of gravity. Veins have valves that act as one-way flaps to prevent blood from flowing backwards as it moves up your legs. If the valves become weak, blood can leak back into the veins and collect there. (This problem is called venous insufficiency.) When backed-up blood makes the veins bigger, they can become varicose.

Spider veins can be caused by the backup of blood. They can also be caused by hormone changes, exposure to the sun, and injuries.

How common are abnormal leg veins?
About 50 to 55 percent of women and 40 to 45 percent of men in the United States suffer from some type of vein problem. Varicose veins affect half of people 50 years and older.
What factors increase my risk of varicose veins and spider veins?

Many factors increase a person’s chances of developing varicose or spider veins. These include:

Increasing age. As you get older, the valves in your veins may weaken and not work as well.

Medical history. Being born with weak vein valves increases your risk. Having family members with vein problems also increases your risk. About half of all people who have varicose veins have a family member who has them too.

Hormonal changes. These occur during puberty, pregnancy, and menopause. Taking birth control pills and other medicines containing estrogen and progesterone also may contribute to the forming of varicose or spider veins.

Pregnancy. During pregnancy, there is a huge increase in the amount of blood in the body. This can cause veins to enlarge. The growing uterus also puts pressure on the veins. Varicose veins usually improve within three months after delivery. More varicose veins and spider veins usually appear with each additional pregnancy.

Obesity. Being overweight or obese can put extra pressure on your veins. This can lead to varicose veins.

Lack of movement. Sitting or standing for a long time may force your veins to work harder to pump blood to your heart. This may be a bigger problem if you sit with your legs bent or crossed.

Sun exposure. This can cause spider veins on the cheeks or nose of a fair-skinned person.

Why do varicose veins and spider veins usually appear in the legs?

Most varicose and spider veins appear in the legs due to the pressure of body weight, force of gravity, and task of carrying blood from the bottom of the body up to the heart.

Compared with other veins in the body, leg veins have the toughest job of carrying blood back to the heart. They endure the most pressure. This pressure can be stronger than the one-way valves in the veins.

What are the signs of varicose veins?

Varicose veins can often be seen on the skin. Some other common symptoms of varicose veins in the legs include:

  • Aching pain that may get worse after sitting or standing for a long time
  • Throbbing or cramping
  • Heaviness
  • Swelling
  • Rash that’s itchy or irritated
  • Darkening of the skin (in severe cases)
  • Restless legs

varicose

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