Chronic Venous Insufficiency: Symptoms, Treatment and UK Management

Chronic Venous Insufficiency (CVI) is a long-term medical condition where the veins in the legs have trouble sending blood back to the heart. In healthy veins, valves ensure that blood flows against gravity toward the heart. In patients with CVI, these valves become weakened or damaged, causing blood to pool in the legs—a process known as venous stasis.

According to the NICE (National Institute for Health and Care Excellence) guidelines, CVI is often associated with varicose veins but can also occur due to deep vein thrombosis (DVT) or simple age-related wear on the vascular system. Without management, the increased pressure in the veins can lead to swelling, skin damage, and eventually painful leg ulcers.

CVI often develops gradually. UK patients should look out for a cluster of symptoms that typically worsen at the end of the day or after long periods of standing. These include:

• Oedema: Swelling in the ankles and lower legs.
• Heavy Legs: A feeling of fullness or tiredness in the lower limbs.
• Aching or Cramping: Often described as a dull throb rather than a sharp pain.
• Skin Changes: Redness, itchiness, or a leathery appearance (venous eczema or stasis dermatitis).
• Varicose Veins: Twisted, enlarged veins that appear blue or dark purple.

If you notice these signs, it is important to speak to a GP to differentiate CVI from other conditions such as heart failure or lymphedema.

Several factors increase the likelihood of developing CVI in the UK. Obesity is a significant contributor, as excess weight puts additional pressure on the vascular system. Other factors include a family history of varicose veins, a sedentary lifestyle, or a history of blood clots.

To reduce your risk, the NHS recommends maintaining a healthy weight and engaging in regular physical activity like walking or swimming, which uses the calf muscle pump to assist blood flow. Avoiding long periods of sitting or standing still is also vital—if you work a desk job, you should aim to move every 30 minutes.

Compression Therapy

The cornerstone of CVI management in the UK is compression therapy. Graduated compression stockings apply pressure to the legs, helping the vein valves function and reducing swelling. It is essential to be measured correctly by a professional to ensure the stockings are effective and safe.

Leg Elevation

Elevating your legs above the level of your heart for 30 minutes, three to four times a day, can significantly reduce the pressure in your veins. This uses gravity to help blood move back toward the heart naturally.

Skin Care

Because CVI can make the skin fragile, regular moisturising with unperfumed emollients is recommended to prevent the skin from cracking, which could lead to infection or ulceration.

Managing a long-term condition like CVI can be challenging, but an online doctor in the UK can provide convenient care from your own home. You should consult a GP online if you notice your leg swelling is becoming persistent or if you are experiencing new skin irritation, such as redness or itching that suggests venous eczema.

A GP can review your medical history, discuss your symptoms via video consultation, and advise on suitable conservative treatments. They can also provide a sick note if your condition makes standing for work difficult, or refer you for further vascular imaging if required by NICE guidelines.

Left untreated, Chronic Venous Insufficiency can lead to more serious issues. The most common is a venous leg ulcer, a long-lasting sore that takes more than two weeks to heal. Other complications include cellulitis (a bacterial skin infection) and lipodermatosclerosis, where the skin becomes extremely hard and scarred. Early intervention and consistent management are the best ways to avoid these outcomes.