Varicose veins: how to prevent their onset?

The key point to remember.

Regular exercise and avoiding prolonged periods of sitting or standing reduce the risk of developing varicose veins.
Maintaining a healthy weight and following an antioxidant-rich diet helps strengthen the resilience of veins.
The use of graduated compression stockings (15–30 mmHg) may be useful if you are at increased risk of varicose veins.
Exposure to heat, wearing tight-fitting clothing, smoking and dehydration can aggravate venous stasis and should be minimised.
Pregnancy elevates venous pressure, making preventive measures and compression therapy particularly important during this period.
Early duplex ultrasound enables detection of reflux from the outset and prevents disease progression.

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What screening methods and early interventions are available for varicose veins?

Research data show that improving muscle pump function, reducing venous pressure and controlling inflammation can lessen the likelihood of developing varicose veins or delay their progression. Before examining preventive strategies, it is important to emphasise that early screening allows venous reflux to be identified before the appearance of varicose veins or skin changes.

Initial assessment of varicose veins.

The process begins with an initial assessment that includes both the medical history and clinical examination. The doctor enquires about symptoms such as sensations of heaviness, a dull ache, cramps or itching, as well as any family history of venous disease and lifestyle factors that may affect blood circulation. A visual inspection of the legs is then carried out in a standing position to detect any visible varicose veins, oedema or skin changes. The doctor may also gently palpate the veins to assess for tenderness or firmness, possible signs of underlying venous dysfunction.

Duplex Doppler ultrasound.

Duplex ultrasound can detect venous reflux at its earliest stages, before structural changes and skin lesions develop. It is a painless, non-invasive examination that uses sound waves to generate real-time images of the veins. During the examination, a technician applies a gel to the skin and moves a handheld probe along the leg. The ultrasound displays both the vein anatomy and the direction of blood flow, allowing the clinician to check whether the valves are functioning properly or if blood is refluxing. This test identifies the veins involved—superficial, deep, or both—and informs treatment decisions, from compression therapy to surgical interventions on varicose veins.

The data indicate that screening and early interventions significantly reduce the likelihood of varicose veins progressing to advanced clinical stages (C4–C6), limit long-term complications and improve overall quality of life.

How can you minimise your risk of developing varicose veins?

Several daily habits and preventative measures can help reduce venous pressure and promote healthy blood circulation in the legs. The most effective ones are presented below.

Physical activity to improve venous return.

A regular exercise, even just 15 to 20 minutes a day, enhances blood circulation and strengthens the calf muscles, which are vital for propelling blood upwards against gravity. Activities such as walking, cycling and light resistance training improve venous return, reduce blood stasis and lower venous pressure. Although direct studies demonstrating a delay in the onset of varicose veins in genetically predisposed individuals are limited, observational data suggest that maintaining regular movement and avoiding prolonged immobility can help slow disease progression and reduce symptom development over time.

Proper posture for improving blood circulation.

Occupations that involve long hours of work in the same position, such as teachers, nurses, factory workers, cashiers, drivers or sedentary professionals, carry a heightened risk of venous disorders. Remaining stationary in the same posture reduces venous flow and increases pressure within the superficial veins. Changing position every 30–45 minutes, taking short walks or performing simple calf raises can greatly reduce venous stasis. Elevating the feet by about 15 cm for 10–15 minutes several times a day at rest allows gravity to aid venous return, reducing oedema and pressure.

Small daily habits, such as avoiding crossing your legs, choosing a supportive seat and performing ankle stretches, also promote healthy circulation. Crossing your legs for extended periods can compress the veins behind the knee and slow venous return, which increases venous pressure. In individuals prone to venous insufficiency, this can exacerbate feelings of heaviness or swelling; it is therefore generally recommended to keep both feet flat on the floor.

Weight and health management.

Obesity is a well-established risk factor for varicose veins in women, primarily due to increased intra-abdominal pressure and chronic venous hypertension. Maintaining a healthy weight reduces the strain on the veins and promotes efficient circulation.

Opt for shoes with low heels or that offer adequate support.

High heels are not ideal for people prone to varicose veins, as they restrict the natural movement of the foot and lower leg. This motion is essential because it allows the calf muscles to pump blood back to the heart. When the calf muscles cannot contract fully, venous return is slowed and pressure in the leg veins increases. However, wearing completely flat shoes all the time is not recommended either, as this can impair posture and comfort. A small heel, generally 2 to 4 cm, enables the foot to move more naturally and helps the calf muscles to function properly, thereby promoting healthy blood circulation.

Avoid exposure to excessive heat and wearing overly tight clothing.

Exposure to intense heat sources, such as saunas, steam rooms or hot baths, induces venous dilation, temporarily increasing venous stasis and potentially worsening symptoms in individuals prone to varicose veins. Similarly, wearing tight clothing at the waist, thighs or groin can hinder venous return and raise pressure in the leg veins. Preferring cooler environments and loose-fitting garments helps to maintain optimal circulation.

Compression therapy as a preventive measure.

Graduated compression stockings apply an external pressure that reduces venous diameter, decreases reflux and improves venous return. Clinical trials show that compression alleviates symptoms such as heaviness, swelling and pain, whilst reducing the risk of progression in individuals predisposed to venous hypertension.

Compression stockings are particularly useful for individuals who remain standing or seated for long periods, pregnant women, subjects presenting early symptoms and those with a family history of venous disorders. As a preventive measure, Class I stockings (15–20 mmHg) or Class II stockings (20–30 mmHg) are generally recommended, depending on symptom severity and daily activity level.

The importance of diet, nutrition and dietary supplements.

To date, there is no solid scientific evidence demonstrating that diet alone can prevent varicose veins.

Although certain dietary habits can influence water retention, inflammation and overall vascular health, their role in preventing venous valve dysfunction has not been clearly established. In general, foods such as berries, citrus fruits, grapes, leafy vegetables, ginger, rosemary, turmeric, nuts and seeds promote better circulation, protect venous walls against the oxidative stress and help maintain venous elasticity.

A low-salt, high-fibre diet can help reduce the risk of varicose veins. Excess salt prompts the body to retain water, increasing fluid accumulation in the legs and raising pressure on the veins. Fibres, meanwhile, help prevent constipation, a condition that temporarily elevates intra-abdominal pressure and can impede venous return from the legs. By limiting water retention and reducing abdominal pressure, a balanced diet supports healthier circulation and lessens stress on the vein walls.

Good hydration helps maintain optimal blood flow and prevents blood from becoming too viscous, thus reducing the pressure exerted on the veins. Abstaining from tobacco also supports venous health, because the smoking damages blood vessels, impairs circulation, increases inflammation and reduces oxygen delivery to tissues, which can weaken the venous walls over time and exacerbate venous insufficiency.

In addition to whole foods, venotonic agents are known to improve venous tone and relieve symptoms. Key compounds include diosmin and hesperidin, rutin, horse chestnut extract (escin) and the Centella asiatica. Generally, these supplements contribute to reduce capillary leakage, oedema, heaviness and inflammation, providing measurable relief for individuals at risk of chronic venous disease.

Maintaining a balanced diet, ensuring adequate hydration and abstaining from smoking can support blood circulation and assist with symptom management, but these measures alone are not sufficient and serve only as complementary approaches.