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Are Varicose Veins Genetic?

Updated: Oct 6



Could your varicose veins be due to genetics? Yes, but they’re likely not the only factor at play.


Like so many chronic conditions, varicose veins may be in your genes. If a parent, grandparent, or other close family member has varicose veins, your odds of developing those enlarged, painful veins on your legs greatly increases.

A study published in 2018 in the journal Circulation has further cemented the relationship between varicose veins and heredity. Analyzing genetic data from more than 400,000 people in the U.K. Biobank, researchers found a strong correlation between inherited characteristics, specifically greater height, to the emergence of varicose veins in those individuals. Additionally, the study uncovered 30 genes present in people with varicose veins. Of course, heredity is only one factor potentially leading to varicose veins, but it’s one you should be aware of if you want to maintain good vein health.


Heredity & Varicose Veins

It’s not surprising varicose veins may be inherited. We inherit many features from our parents, such as eye and hair color. It’s the same with our veins. Veins function properly when the valves inside them close to push blood from the extremities back up to the heart, but those valves can weaken and stop functioning properly. When that occurs, blood builds up within the vein walls, causing the vein to bulge outward, forming a varicose vein.

Some people may be born with abnormal or weak vein valves or walls, which heightens their risk of varicose veins at some point in their lives. If you develop varicose veins earlier in life, the most likely cause is genetics.


Women also have a higher risk of varicose veins because pregnancy strains the veins in the lower body. (Fortunately, pregnancy-related varicose veins usually disappear weeks after childbirth, though multiple pregnancies are considered a risk factor for long-term varicose veins.) Birth control pills and hormone replacement therapy dilate the veins as well, making it easier for blood to collect in the veins. Veins also lose strength as we age, so age is another contributing factor.


In short, varicose veins progress for many reasons, with heredity one of many. Unfortunately, you cannot control what genes you inherit. But you can take measures to reduce your chances of varicose veins by reducing risk factors within your control, such as weight, diet, and activity level.


Preventing Varicose Veins

Excess weight can put extra pressure on the veins, and a generally poor diet and lack of exercise can also contribute to vein disease. In addition, sitting or standing for long hours obstructs blood from flowing upward to the heart, thereby allowing blood to collect within the veins.


Fortunately, you can easily reduce your risk with simple lifestyle changes. Losing weight and eliminating processed foods with high amounts of sodium from your diet will lighten the pressure on your veins and reduce swelling. Exercises that focus on strengthening the calf muscles like walking and swimming bolster blood flow in leg veins and prevent blood from pooling and stretching vein walls.


If your job requires long periods of standing or sitting, be sure to move about the office or flex your ankles to nudge blood along the veins. You can also encourage healthy blood flow — whether seated or standing — with compression stockings made of strong, tightly woven elastic. The garments are available in drugstores or by prescription if you need a medical-grade pair.


Venous insufficiency and varicose veins are significant medical disorders that require treatment. If you suffer from varicose veins or know of family members with the condition and think you may be in line for the same ailment, consult a vein specialist to understand your risk factors and therapeutic alternatives.


A vascular surgeon who specializes in vein disease can help you decide which surgical or non-surgical method is right for you. Just because you may have a genetic predisposition to varicose veins doesn’t mean you will develop them. By proactively treating your veins, you can live a life without the discomfort of varicose veins.

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