Varicose veins and excess weight: how extra kilos load your legs
- Excess weight is one of the risk factors for vein disease: it raises abdominal pressure and slows blood returning from the legs.
- Losing weight may ease the load on your veins and reduce swelling, but veins that are already enlarged will not disappear.
- Lose weight gradually: no starvation diets, plenty of vegetables, pulses and water, and a daily walk.
- Compression stockings for larger legs need careful fitting; the class and size are chosen by a doctor.
- Sudden swelling and pain in one leg means calling 103 straight away.
The trousers that fitted loosely in spring now button up with effort, and by evening your socks leave deep marks around the ankles. Climbing to the fourth floor without a lift feels harder, your legs ache and you just want to sit down. Many people put this down to tiredness or age, but quite often a few extra kilos play their part too.
The link between varicose veins and excess weight is not always obvious. Weight on its own does not 'create' diseased veins, but it gives them a great deal of extra work. Let's look at exactly how extra kilos affect your legs, why swelling is worse when you are heavier and what you can do starting now, without harsh diets or guilt.
How does excess weight affect the veins in your legs?
To get from your feet back to your heart, blood in the leg veins has to travel against gravity. It is helped by valves that stop it flowing backwards and by the calf muscles, which squeeze the veins like a pump with every step. Excess weight interferes with this system in several ways at once.
- Pressure in the abdomen. Fat around the belly raises the pressure inside the abdomen, making it harder for blood from the legs to rise through the large pelvic veins.
- More load, less movement. Each extra kilo makes walking and climbing stairs harder, so people naturally move less and the calf 'muscle pump' works more weakly.
- Long hours sitting. Sitting often feels more comfortable when you are heavier, but in a seated position the veins behind the knees and in the groin are compressed.
- Fluid retention. Excess weight often goes hand in hand with large, salty meals, which make evening swelling worse.
As a result, the vein valves work under extra strain for years. Add a family history, a job on your feet or pregnancy, and the risk of chronic venous disease rises.
Varicose veins and excess weight: a direct link or a coincidence?
International guidelines list obesity among the risk factors for chronic venous disease, alongside age, family history, female sex, pregnancy and prolonged standing. Even so, there is no consensus on how strongly weight drives the appearance of varicose veins as such: many heavier people have healthy veins, while some slim people have marked varicose veins.
What can be said with more confidence is that symptoms are usually harder to live with when you carry extra weight. Swelling is more pronounced, heaviness and tiredness set in sooner, and skin changes on the lower legs are more common. Obesity also raises the risk of venous thrombosis, so it is especially important for heavier people to know the warning signs.
One more honest point: losing weight will not remove veins that are already enlarged, because damaged valves do not repair themselves. But it may lighten the load on your veins and ease swelling and heaviness.
How can you tell that weight is affecting your legs?
The number on the scales is not the most useful guide. Doctors usually look at body mass index (BMI) and waist circumference. To work out your BMI, divide your weight in kilograms by your height in metres squared. A value from 25 to 29.9 means overweight, and 30 or above means obesity.
Waist size shows how much fat is stored around the abdomen, which matters particularly for the veins. Listen to how your legs feel, too:
- your legs swell noticeably by evening, and the swelling goes down overnight;
- shoes that are comfortable in the morning start to pinch after work;
- socks leave deep marks on your lower legs;
- you have heaviness, a bursting feeling or night cramps in your calves;
- veins or thread veins on your legs have become more visible.
If anything on this list sounds familiar, see a phlebologist or your GP. Swelling in heavier people is not always caused by the veins: the heart, kidneys, thyroid, lymphatic system or certain medicines can be behind it, and only a doctor can tell the difference.
How can you lose weight without harming your veins?
Strict diets work less well than calm changes you can keep up for years. Fasting and 'detox programmes' may show quick results on the scales, but the weight almost always comes back, and you are left with less energy for moving.
- Make half your plate vegetables and herbs. A salad of cucumbers and tomatoes, stewed pumpkin, carrots and cabbage fill you up with few calories.
- Swap some of the meat for pulses. Mung beans, chickpeas and beans in soups and main dishes provide protein and fibre that supports digestion.
- Cut down on salt. Pickles, sausages, crisps and salty cheese hold on to water and make swelling worse.
- Watch the sugar in your cup. Tea with several spoonfuls of sugar, fizzy drinks and boxed juices quietly add a lot of calories. Drink your tea unsweetened, and have plain water too.
- Mind the portion size. Lagman, samsa and plov can stay on the menu; simply serve yourself a smaller portion and do not rush for seconds.
What kind of exercise suits a higher body weight?
For your veins, regularity matters more than intensity. A 20–30 minute walk every day is better than wearing yourself out at the gym once a week. Start with what you can do without knee pain or breathlessness, and build up gradually.
- Walking at a comfortable pace is the easiest place to start. Our article Walking: the best workout for your veins explains how to get the most from it.
- Swimming and water aerobics take the strain off your joints, while the water gently presses on your legs. Read more in our piece on swimming with varicose veins.
- An exercise bike and seated exercises are a good option if long walks are difficult.
- Calf raises, ankle circles and 'pedalling' your feet can be done at home and even at work.
Jumping, running on tarmac and heavy lifting are best postponed at first: they load the joints, and straining raises abdominal pressure. If you have heart or joint problems, agree your exercise plan with a doctor.
Do you need compression stockings if you are overweight?
Compression is one of the cornerstones of care in chronic venous insufficiency, and body weight does not make it any less useful. But fitting stockings to larger legs is trickier: the garment has to match your measurements exactly, or it will roll down or dig into the skin.
The compression class and size are chosen by a doctor, and compression is not suitable in some arterial diseases, so only start wearing it after a consultation. We covered how to take measurements and what to look for when buying in our guide on how to choose compression stockings.
When should you see a doctor?
Book an appointment with a phlebologist if heaviness and swelling bother you regularly, if your veins are becoming more visible, or if the skin on your lower legs darkens, hardens or itches. The doctor will examine you and arrange a duplex ultrasound scan of your veins, a painless test that shows how the valves are working.
If venous insufficiency is confirmed, your doctor may also discuss venotonic medicines. Phlebodia 600 (diosmin 600 mg) is an over-the-counter medicine indicated to relieve symptoms of lymphovenous insufficiency of the legs: heaviness and tiredness, pain and restless legs syndrome. It is usually taken as 1 tablet a day with a meal; if symptoms do not ease within 2 weeks, see a doctor. Full details are in the official instruction. Before use, read the instruction leaflet and consult a specialist.
Step by step towards lighter legs
Varicose veins and excess weight are neither a life sentence nor a reason to be hard on yourself. Every kilo lost, every walk and every portion of vegetables takes a little of the load off your veins. Start small: a short stroll after dinner today, unsweetened tea tomorrow, and in a month you may notice that your legs feel lighter in the evenings.
Sources: 1. De Maeseneer MG, Kakkos SK, Aherne T, et al. ESVS 2022 Clinical Practice Guidelines on the Management of Chronic Venous Disease of the Lower Limbs. Eur J Vasc Endovasc Surg. 2022;63(2):184–267. 2. National Institute for Health and Care Excellence (NICE). Varicose veins: diagnosis and management. Clinical guideline CG168, 2013. 3. Instructions for medical use of Phlebodia 600 (Republic of Uzbekistan).
Can excess weight cause varicose veins?
Obesity is considered one of the risk factors for chronic venous disease, but it usually acts together with others such as heredity, age, pregnancy and standing work. When you are overweight, heaviness and swelling tend to be more pronounced.
Will varicose veins go away if I lose weight?
Veins that are already enlarged do not disappear after weight loss, because damaged valves do not recover. But the load on your veins decreases, and many people feel better, with less swelling and heaviness.
Which exercise suits varicose veins and a higher body weight?
Walking, swimming, water aerobics, an exercise bike and simple calf exercises. Heavy weights and jumping are best postponed and discussed with a doctor.
Why do heavier people get more leg swelling?
Higher pressure in the abdomen makes it harder for blood to leave the legs, and moving less weakens the calf muscle pump. Swelling can also be linked to the heart, kidneys or thyroid, so a doctor should assess the cause.