varicose veins screening test preparation

Overview

Varicose veins are swollen, twisted veins that you can see just under the surface of the skin. They usually happen in the legs. The veins have weakened walls and faulty valves that let blood pool instead of flowing back to the heart.

Yes, varicose veins are very common. About one in three adults may get them at some point in their lives.

Varicose veins can affect anyone, but they are more common in women, people over 40, those who stand or sit for long periods, and people who are overweight or pregnant.

Symptoms

Common symptoms

• Aching, heavy feeling in legs
• Swelling in feet and ankles
• Burning or throbbing in legs
• Itching around the veins
• Visible dark purple or blue bulging veins

Symptoms in children

• Varicose veins are uncommon in children. If they appear, a doctor should check for an underlying condition.

Symptoms in older adults

• Older adults may have more severe symptoms due to long-standing vein damage. They may also have skin changes like dryness, thinning, or ulcers near the ankles.

Causes

Main causes

• Weakened or damaged vein walls
• Faulty valves inside the veins that allow blood to flow backward and pool

Risk factors

• Age (over 40)
• Being female
• Pregnancy
• Family history of varicose veins
• Obesity
• Jobs that require long periods of standing or sitting
• Lack of exercise

When to see a doctor

See a doctor urgently if:

• If you have sudden, severe leg pain and swelling (possible blood clot).
• If a varicose vein bursts and bleeds heavily.
• If you have signs of infection around a vein or ulcer.

Book a routine appointment if:

• If you have persistent aching or heaviness in your legs that affects daily life.
• If you are worried about the appearance of your veins.
• If you have skin changes like discoloration or ulcers near your ankles.

Diagnosis

Varicose veins are usually diagnosed by a physical exam. Your doctor will look at your legs while you stand and ask about your symptoms. They may also feel the veins and check for swelling or skin changes. To get a clearer picture, a simple and painless test called a duplex ultrasound is often used. This test uses sound waves to see how blood flows in your veins and to check for any blockages or valve problems.

Tests that may be done

• Physical examination
• Duplex ultrasound (also called venous Doppler) — a non-invasive test that uses sound waves to assess blood flow.
• Sometimes a venogram (X-ray with dye) is done if ultrasound results are unclear.

What to expect at your appointment

For a duplex ultrasound, you will lie on an examination table. The technologist will put a clear, water-based gel on your leg and use a small handheld device called a transducer to send sound waves. You may be asked to stand or sit to see how gravity affects your veins. The test takes about 30–45 minutes. It is painless, but you may feel slight pressure. There is no special preparation needed — just wear loose, comfortable clothing that can be easily rolled up. If you are taking blood thinners (anticoagulants), tell the doctor beforehand, but do not stop any medication unless told. The test helps your doctor plan the best treatment for you.

Treatment

Treatment for varicose veins depends on your symptoms, the severity, and your overall health. Many people find relief with self-care measures. If these are not enough, there are a variety of procedures that can close or remove the problem veins. No treatment is needed if veins are not causing problems.

Self-care at home

• Wear compression stockings to improve blood flow and reduce swelling.
• Elevate your legs above heart level for 15–30 minutes several times a day.
• Avoid standing or sitting for long periods. Take short walks every 30 minutes.
• Exercise regularly — walking, swimming, cycling can all help.
• Maintain a healthy weight to reduce pressure on your legs.

Medical treatments

If self-care does not help, your doctor may recommend procedures. These are done by a specialist and include: sclerotherapy (injecting a solution to close the vein), laser therapy (using light energy to seal the vein), radiofrequency ablation (using heat to close the vein), and endovenous laser treatment. These are usually done in a clinic and have quick recovery times. Another option is phlebectomy (small incisions to remove the vein) or vein stripping (for larger veins). Your doctor will discuss which approach is best for you.

When is surgery considered?

Surgery for varicose veins is less common now because less invasive procedures work well. It may be considered if the veins are very large, if other treatments have failed, or if you have complications like ulcers or bleeding. Your doctor will explain the options.

Living with this condition

Living with varicose veins is manageable for most people. Simple habits can help you feel better and prevent the condition from getting worse. If you have symptoms, wearing compression stockings during the day and elevating your legs when resting can make a big difference. Your doctor or a specialist nurse can help you choose the right stocking strength.

Lifestyle tips

• Stay active — aim for at least 30 minutes of moderate exercise most days.
• Avoid crossing your legs when sitting.
• Wear loose clothing and avoid high heels that restrict blood flow.
• If you stand for long periods, shift your weight from foot to foot and take breaks to walk.

Diet and exercise

A balanced diet rich in fiber can help prevent constipation, which can worsen varicose veins. Include plenty of fruits, vegetables, whole grains, and lean protein. Also, drink enough water. Exercise like walking, swimming, or yoga can improve circulation and muscle tone in your legs. Try to do activities that move your legs without jarring impact.

Mental health and emotional wellbeing

Varicose veins can affect how you feel about your appearance, especially if they are large or cause skin changes. It is normal to feel self-conscious or frustrated. Talking to your healthcare provider or a professional counselor can help. Many treatments can improve the look of your veins, so you do not have to live with them if they bother you.

Prevention

You cannot always prevent varicose veins, especially if you have a family history. However, certain steps can lower your risk or keep existing veins from getting worse. Staying at a healthy weight, exercising regularly, and avoiding long periods of sitting or standing can help.

Screening programmes

There is no routine screening test for varicose veins for people without symptoms. If you have symptoms or risk factors, your doctor may recommend an ultrasound to check your veins. For screening test preparation: no special diet or fasting is needed. Just wear comfortable clothing that allows access to your legs. Tell your doctor if you have any allergies or take medications. The test is safe and painless.

Complications

If left untreated

• Chronic venous insufficiency – long-term damage to vein valves causing swelling, skin changes, and leg ulcers.
• Blood clots (superficial thrombophlebitis) – a clot in a vein just under the skin, causing pain and redness.
• Skin ulcers – open sores that are hard to heal, usually near the ankle.
• Bleeding – a varicose vein near the skin surface can burst and bleed.

Long-term outlook

For most people, varicose veins are a cosmetic concern or cause mild symptoms. With simple lifestyle changes and, if needed, medical treatments, symptoms can be well managed. Serious complications are rare, but it is important to see a doctor if symptoms change. Treatment options have good success rates, and many people get relief from discomfort and improved appearance.

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