Varicose veins are one of the most common vein problems, affecting millions of adults, and they tend to become more noticeable with age. If you have started to see enlarged, twisted veins on your legs, you may be wondering what causes varicose veins in the first place, whether you can do anything to prevent them, and when it is time to talk to a provider. This guide explains the root cause of varicose veins, the main risk factors, practical prevention steps, the symptoms to watch for, and how varicose veins are diagnosed.
What Are Varicose Veins?
Varicose veins are enlarged, twisted veins that bulge above the surface of the skin, usually on the legs, ankles, and feet. They often appear blue, green, or purple and can feel rope-like or cord-like. Because they develop in the larger veins beneath the skin, varicose veins are typically raised and easy to see. For some people they are mainly a cosmetic concern, while for others they cause aching, heaviness, swelling, and other symptoms that affect daily life.
The Root Cause of Varicose Veins
Varicose veins develop because of a problem with the tiny one-way valves inside your veins. Your veins carry blood back toward the heart, working against gravity when you are standing or sitting. To keep that blood from sliding backward, each vein has a series of small valves that open to let blood through and then close to prevent it from flowing in the wrong direction.
When these valves weaken or become damaged, they no longer close completely. Blood can then leak backward and pool inside the vein, a process known as venous reflux. As blood collects, pressure builds inside the vein, stretching its walls and causing the bulging, twisting shape that defines a varicose vein. When this backward flow becomes persistent, it is called chronic venous insufficiency, meaning the leg veins can no longer move blood efficiently back to the heart. This underlying valve failure is the true cause of varicose veins, and the risk factors below all make it more likely to happen.
Risk Factors for Varicose Veins
Several factors raise your chances of developing varicose veins. Some you cannot control, while others are tied to lifestyle and overall health:
- Family history and genetics. If your parents or close relatives have varicose veins, your risk is significantly higher. Inherited vein and valve structure is one of the strongest predictors.
- Being female. Women develop varicose veins more often than men, largely because of hormonal influences on vein walls and valves.
- Pregnancy. Pregnancy increases the volume of blood in the body and places extra pressure on the leg veins. Hormonal changes during pregnancy also relax vein walls, which is why varicose veins often appear or worsen during this time.
- Older age. Vein valves naturally wear down over the years, so the risk of varicose veins rises as you get older.
- Obesity. Carrying extra body weight adds pressure to the veins in the legs, making it harder for the valves to keep blood moving upward.
- Prolonged standing or sitting. Jobs and habits that keep you in one position for long periods make it harder for blood to move out of the legs, encouraging it to pool.
- A history of blood clots or leg injury. A previous deep vein thrombosis (DVT) or an injury to the leg can damage veins and valves, raising the risk of varicose veins later.
Having one or more of these risk factors does not guarantee you will develop varicose veins, but the more that apply to you, the higher your overall risk.
Can You Prevent Varicose Veins?
You cannot change your genetics, your age, or your family history, but you can take steps that reduce pressure on your leg veins and help your circulation. These habits may lower your risk or slow the progression of varicose veins you already have:
- Stay active. Regular movement, especially walking, helps the calf muscles pump blood up and out of the legs.
- Maintain a healthy weight. Extra weight raises pressure in the leg veins. Losing even about 10 percent of your body weight can meaningfully relieve that pressure for people who are overweight.
- Elevate your legs. Raising your legs above the level of your heart for about 15 minutes a day helps blood drain out of the legs and eases pressure in the veins.
- Change position often. If you sit or stand for long stretches, shift your weight, flex your calves, and take short walking breaks to keep blood moving.
- Wear compression stockings. Compression stockings gently squeeze the legs to support the veins and improve blood flow, and they are often recommended both to help prevent varicose veins and to ease symptoms.
- Stay hydrated and avoid tobacco. Drinking enough water supports healthy circulation, and avoiding tobacco helps protect your blood vessels overall.
These measures will not reverse valves that have already failed, but they can reduce discomfort and help keep varicose veins from getting worse.
Symptoms and When to See a Provider
Varicose veins do not always cause symptoms, but when they do, common ones include aching, heaviness, throbbing, or tired legs, along with swelling in the lower legs and ankles, itching or burning around the vein, and muscle cramping, often at night. Symptoms tend to be worse after long periods of standing or sitting and to improve when you elevate your legs or move around.
You should see a provider if leg pain, heaviness, or swelling interferes with your daily life, if the skin near your ankle changes color or texture, if a vein becomes hard, warm, red, or tender, or if a sore near the ankle will not heal. Seek care promptly for sudden swelling or pain in one leg, which can be a sign of a deep vein clot that needs immediate attention. Getting evaluated early makes treatment simpler and helps prevent complications such as skin changes and venous leg ulcers.
How Are Varicose Veins Diagnosed?
A specialist usually starts with a physical exam, often looking at the veins while you stand so the effect of gravity is visible. To see what is happening beneath the surface, the key test is a venous ultrasound, also called a duplex or Doppler ultrasound. This painless, radiation-free exam uses sound waves to show how blood flows through your veins and whether the valves are working properly. It confirms venous reflux, measures how severe it is, and maps the affected veins so any treatment can be targeted precisely. At Raleigh Radiology, our team performs venous ultrasound and offers interventional radiology services, including vein ablation for varicose veins, through our vein care services at the Midtown location.
What to Expect at a Vein Consultation
If varicose veins are bothering you, the simplest first step is a vein consultation. At Raleigh Radiology, a vein consultation at our Midtown location does not require an order or referral from another provider, so you can request one yourself without waiting to see your primary care doctor first.
During the consultation, a specialist reviews your symptoms and health history, examines your legs, and discusses what you have been experiencing. If it would help to see how blood is moving beneath the surface, a venous ultrasound can be arranged as part of your evaluation. From there, you and your specialist can decide on a plan together, whether that means conservative steps such as compression and exercise, or a minimally invasive treatment like vein ablation if your ultrasound shows significant reflux. Because no referral is needed to begin, a vein consultation is an easy way to get clear answers and understand your options.
Schedule a Vein Consultation at Midtown
If you are seeing varicose veins or dealing with leg discomfort and swelling, you do not have to wait for a referral to find out what is going on beneath the surface. Raleigh Radiology offers vein consultations at our Midtown location, and no referring-provider order is required to book one.
To get started, call 919-781-1437 or request an appointment at raleighrad.com/schedule. You can learn more about our vein care services and view all of our Triangle locations online. Raleigh Radiology provides expert vein and vascular care close to home, with nine convenient locations across the Triangle in Blue Ridge, Cary, Clayton, Fuquay-Varina, Holly Springs, Knightdale, Midtown, Oberlin, and Wake Forest.