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What are Varicose Veins? Causes, Symptoms, and Effective Treatments 


The below content has been medically reviewed and approved by Consultant Interventional Radiologist Dr Ananth Krishnan (MBBS, MRCP, FRCR), Training and Education Lead, part of the Medical Advisory Committee at Veincentre.

Last reviewed 11th April 2025.

Varicose veins are swollen, twisted veins that usually occur on the legs and feet. They often appear dark purple or blue and may bulge beneath the skin’s surface. While they are common and generally harmless, they can sometimes cause discomfort or lead to more serious health concerns if left untreated. You aren’t alone – around 1 in 3 people will develop varicose veins in their lifetime. At Veincentre, our dedicated consultants are here to help you understand, manage, and treat varicose veins effectively with our convenient, walk-in, walk-out treatments designed to fit around your life.

 

What Causes Varicose Veins?

Understanding the reasons behind varicose veins is the first step toward finding the right treatment. Varicose veins develop when the valves within your veins stop functioning correctly. These valves usually help blood flow toward the heart, but when they weaken or become damaged, blood pools in the veins, causing them to enlarge.

 

Varicose Veins Causes

  • Genetic factors: A family history of varicose veins can increase your likelihood of developing them. 
  • Ageing: Vein walls and valves naturally weaken as you age. 
  • Pregnancy: Increased blood volume and hormonal changes can place extra pressure on veins. 
  • Standing or sitting for long periods: Reduced blood flow due to inactivity can contribute to varicose veins. 
  • Obesity: Excess weight places extra pressure on veins, making them more prone to damage.

 

What Do Varicose Veins Look Like?

Varicose veins are usually visibly enlarged, swollen, and twisted veins that appear just beneath the skin’s surface. They are often dark purple or blue and most commonly affect the legs. Some people may notice bulging veins, while others may see thread-like veins, particularly around the ankles.

 

What Do Varicose Veins Feel Like?

Some people may not experience symptoms but might feel self-conscious about the appearance of their legs. However, for those who do experience symptoms, they can vary widely. The sensation of varicose veins varies between individuals.

Common symptoms include: 

  • Aching, heavy, or throbbing legs. 
  • Tired and ‘restless’ legs.
  • Itching or burning sensation around the affected area. 
  • Muscle cramping or swelling in the lower legs. 
  • Discomfort that worsens after standing or sitting for long periods. 

 

What Exercises Are Bad for Varicose Veins?

While staying active is generally beneficial, certain exercises can put excessive pressure on veins. High-impact activities, such as running or heavy weight-lifting, can exacerbate symptoms. However, low-impact exercises like swimming, cycling, or walking are generally safer options. Our consultants at Veincentre can guide you on exercises that are most suitable for your condition.

 

Why Choose Veincentre?

At Veincentre, we specialise in providing convenient and effective varicose vein treatments. We are the largest and most established varicose vein treatment provider in the UK, with over 40 clinics nationwide, making it easy to find expert care near you. Our experienced vascular consultants offer personalised treatment plans tailored to your needs, ensuring a smooth and comfortable experience from consultation to recovery. Unlike other providers, you meet your dedicated consultant at your first appointment.  

We pride ourselves on our walk-in, walk-out treatments, allowing you to resume normal activities almost immediately. With a 99% success rate, you can trust that you’re in the best hands at Veincentre. 

If you’re experiencing discomfort or symptoms related to varicose veins, it’s time to take action. Book a consultation today with our trusted consultants to explore your varicose vein treatment options.

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