Compression stockings are specialised hosiery designed to apply controlled pressure to the lower limbs to support healthy blood circulation and reduce swelling. They are primarily used to counteract the effects of gravity on the venous system, helping the valves within the veins function more effectively to return blood to the heart. In the United Kingdom, healthcare professionals recommend their use for a variety of conditions ranging from the prevention of blood clots during hospitalisation to the long-term management of chronic vascular issues. Ensuring that these garments are appropriately fitted and used under medical guidance is essential for achieving the intended therapeutic benefits.
What We’ll Discuss in This Article
- The primary role of compression in preventing deep vein thrombosis
- Management of varicose veins and chronic venous insufficiency
- The use of compression therapy for lymphoedema and swelling
- Clinical recommendations for travel and long-distance journeys
- Post-operative use and recovery in hospital settings
- When compression is not advised due to underlying health issues
Prevention of Deep Vein Thrombosis (DVT)
One of the most critical reasons for recommending compression stockings is to lower the risk of developing a blood clot in the deep veins of the legs. By applying graduated pressure which is tightest at the ankle and gradually decreases further up the leg these stockings prevent blood from pooling and becoming stagnant. The NHS recommends the use of compression stockings for individuals at an increased risk of DVT, particularly those with reduced mobility or a history of blood clots. This mechanical support is often the first line of defence in maintaining venous flow when the natural calf muscle pump is not active.
Management of Varicose Veins
Compression stockings are frequently prescribed as a conservative treatment for varicose veins, which occur when the valves in the veins become weak or damaged. The pressure provided by the stockings helps to compress the surface veins, forcing blood into the deeper venous system where it can be moved more efficiently toward the heart. This can significantly alleviate common symptoms such as aching, heaviness, and throbbing in the legs. NICE guidelines suggest that compression therapy should be considered for patients with symptomatic varicose veins when interventional treatments are not suitable or as a supportive measure following surgery.
Chronic Venous Insufficiency and Ulcers
For individuals with chronic venous insufficiency (CVI), the blood does not return to the heart effectively, leading to long-term swelling and skin changes. Over time, this pressure can cause fluid to leak into the surrounding tissues, potentially leading to the development of venous leg ulcers. Compression therapy is the standard of care in the UK for managing CVI and promoting the healing of these ulcers. By reducing the pressure within the veins and controlled swelling, the stockings create a better environment for the skin and underlying tissues to repair themselves.
Lymphoedema and Oedema Management
Compression is a core component of managing lymphoedema, a condition where the lymphatic system fails to drain fluid correctly, causing significant swelling in the limbs. Unlike standard vascular stockings, those used for lymphoedema are often made of a flatter, stiffer knit to provide a “micro-massage” effect as the wearer moves. This helps to move the lymph fluid out of the affected area and prevents the swelling from worsening. For general oedema (swelling) caused by pregnancy or prolonged standing, lower grades of compression may be recommended to provide comfort and reduce fluid build-up at the end of the day.
Travel and Long-Distance Journeys
Long-haul travel, defined as journeys exceeding four hours, increases the risk of blood clots due to prolonged immobility in a confined space. Flight socks or travel compression stockings are often recommended for individuals undertaking these journeys, particularly if they have additional risk factors such as being over the age of 60, having a high body mass index, or a family history of clots. These garments help maintain circulation during periods were walking and leg exercises are limited. It is important to ensure that travel stockings are of the correct size to avoid restricting blood flow rather than assisting it.
Post-Operative Recovery and Hospitalisation
In a hospital setting, patients who are bedbound or recovering from major surgery are at a high risk of developing “hospital-acquired” blood clots. NICE guidelines provide clear protocols for the use of anti-embolism stockings for surgical patients to ensure that preventative measures are in place from the moment of admission. These stockings are typically white and have a different pressure profile than those worn for daily activities, as they are designed for patients who are lying down rather than standing or walking. They are often used in combination with blood-thinning medications to provide comprehensive protection.
Contraindications and When to Avoid Compression
While beneficial for many, compression stockings are not suitable for everyone and can be harmful if used in the presence of certain conditions. They are generally not recommended for individuals with severe peripheral arterial disease, as the external pressure can further restrict the supply of oxygenated blood to the feet. They may also be avoided in cases of uncontrolled congestive heart failure, acute skin infections (cellulitis), or severe peripheral neuropathy where the patient cannot feel if the stocking is too tight. A clinical assessment, often including a Doppler ultrasound to check arterial blood flow, is usually required before a prescription is issued.
Conclusion
Compression stockings are recommended for a wide range of circulatory and lymphatic conditions to support blood flow and reduce complications. Whether used for the prevention of life-threatening blood clots or the management of chronic swelling, they remain a vital tool in UK clinical practice. To be effective, they must be correctly measured, fitted, and replaced regularly as they lose their elasticity. If you experience severe, sudden, or worsening symptoms, call 999 immediately.
How long should I wear my compression stockings each day?
Most patients are advised to put their stockings on first thing in the morning and take them off just before going to bed, unless otherwise directed by a specialist.
Can I wear compression stockings while I sleep?
Standard compression stockings are not usually worn at night because the horizontal position of the body naturally assists blood flow, making the extra pressure unnecessary and potentially uncomfortable.
How often do I need to replace my stockings?
To maintain the correct level of pressure, most compression garments should be replaced every three to six months as the elastic fibres eventually break down.
Should I get measured for stockings if my legs are currently very swollen?
It is best to have your legs measured when the swelling is at its lowest, typically first thing in the morning, to ensure the stockings fit correctly as the swelling reduces.
Can I buy compression stockings over the counter?
While lower grades of compression are available without a prescription, it is safer to have a professional assessment to ensure you are using the correct class of compression for your needs.
Are there different types of compression stockings?
Yes, they range from light support for tired legs to high-grade medical compression for serious venous disease and come in various lengths including knee-high and thigh-high.
What should I do if my stockings feel too tight or painful?
If you experience numbness, tingling, or a change in the colour of your toes, you should remove the stockings immediately and contact your healthcare provider for a fit review.
Authority Snapshot (E-E-A-T)
This article provides information regarding the clinical use of compression therapy in accordance with UK health standards. The content is reviewed by Dr. Stefan Petrov, a UK-trained physician with experience in general medicine and surgical wards where the management of venous health is a priority. All information is strictly aligned with the patient safety protocols and clinical guidance established by the NHS and NICE.
