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Weight and venous insufficiency: relationship, causes and treatments
Being overweight puts extra pressure on the leg veins and worsens venous insufficiency. Here is the link between the two, the disorders it causes, and how to relieve the symptoms.
- Excess weight raises pressure in the legs and worsens venous insufficiency.
- A BMI above 27 raises varicose vein risk to 29%, and to 39% in women.
- In overweight patients, varicose veins are harder to spot and to treat.
- Diet, exercise and compression relieve symptoms but do not remove the veins.
- Focused ultrasound can treat the vein itself without any incision.
Would you like to better understand the link between excess weight and varicose veins? Here we explain the relationship and share advice to relieve the symptoms.
Overweight is recognised by the WHO as a major health issue worldwide, while chronic venous disease affects about one woman in two and one man in three in France. The two conditions clearly interact, and ageing populations will only make it more common.
How is excess weight an aggravating factor?
In France, 18 million people live with venous insufficiency, and one woman in two and one man in three have varicose veins.
As a reminder, varicose veins are winding dilations of the superficial veins of the legs. Under the effect of gravity and vein dilation, blood that normally flows upward tends to stagnate or flow back, because the valves no longer close properly. Varicose veins are the most common sign of chronic venous insufficiency.
Among the many causes of poor venous return, excess weight plays a strong role: fatty tissue increases pressure in the legs, compresses the veins and slows the return of blood.
The heavier the excess weight, the stronger the symptoms. An adult with a BMI above 27 has a 29% risk of developing varicose veins, rising to 39% in women.
Which disorders come with venous insufficiency?
Venous insufficiency usually shows up as four disorders:
- Heavy legs: blood stagnates and accumulates in the veins, creating an unpleasant sensation of heaviness.
- Varicose veins: purple, swollen veins that appear when blood no longer circulates properly.
- Edema: fluid builds up in the legs or ankles, which swell and become uncomfortable.
- Haemorrhoids: essentially varicose veins of the anal and rectal lining, which can be painful and bleed.
Why obesity makes varicose veins trickier
When you are overweight, varicose veins are more complex to handle than in classic venous insufficiency:
- They are harder to spot early. Twisted, swollen veins are easily visible at a normal weight, but often hidden in overweight patients, who then consult later and risk more complications, including leg ulcers.
- They are harder to assess and treat. Diagnosis relies on a duplex ultrasound; when veins lie deeper under the tissue, visibility drops and diagnosis becomes less accurate.
Losing weight and moving more ease the symptoms, but they do not remove existing varicose veins. When the vein itself needs treating, focused ultrasound (echotherapy) offers a non-invasive option, with no incision, that can help even when veins are harder to reach.
What can relieve the symptoms?
The discomfort of venous insufficiency is real, so here is how to reduce it. First, adopt a healthy daily routine:
- Watch your calories and favour a diet low in sugar and rich in fibre, antioxidants and omega-3 to protect the vein wall.
- Move regularly. Swimming, walking and cycling tone the calf muscles that pump blood upward; go easy on stop-and-go sports such as tennis or squash.
- Consider plant-based supplements, or the compression stockings your doctor may prescribe (see our dedicated article).
A few everyday habits also help against heavy legs:
- Stay cool: heat dilates the veins, so avoid saunas and very hot baths.
- Rinse your legs with cold water, directing the jet upward from the ankles to the thighs.
- Elevate your legs after a long day sitting or standing.
- Try massage or lymphatic drainage to ease the pain.
- Avoid tight clothing that compresses the waist or calves.
Wondering whether echotherapy is available near you? A growing network of centres is already equipped with the SONOVEIN.
Questions fréquentes
Can being overweight cause varicose veins?
Excess weight is a strong aggravating factor. Fatty tissue increases pressure in the legs and slows venous return, which favours the appearance and worsening of varicose veins.
Does losing weight improve varicose veins?
Losing weight lowers the pressure on your veins and can ease symptoms, but it does not make existing varicose veins disappear; those require a medical treatment.
Why are varicose veins harder to detect when overweight?
In overweight patients the veins often lie deeper and are not visible on the surface, so problems are spotted later and the duplex ultrasound used for diagnosis is less accurate.
What exercise is best for venous insufficiency?
Low-impact activities such as swimming, walking and cycling tone the calf muscles and support venous return; stop-and-go or jarring sports are best done in moderation.
Which everyday habits relieve heavy legs?
Staying cool, rinsing the legs with cold water from ankle to thigh, elevating the legs, gentle massage and avoiding tight clothing all help.