Venous Stasis Dermatitis: Symptoms, Causes, and UK Treatment Options

Venous stasis dermatitis, also known as gravitational eczema or varicose eczema, is a long-term skin condition that affects the lower legs. It occurs when the valves in the leg veins do not work efficiently, a condition known as chronic venous insufficiency (CVI). When these valves fail, blood struggles to flow back up to the heart and instead pools in the lower legs.

This increased pressure causes fluid and blood cells to leak out of the small blood vessels and into the surrounding skin tissue. Over time, this leakage triggers an inflammatory response, leading to the characteristic itchy, red, and scaly skin associated with dermatitis. In the UK, this condition is particularly common among older adults and those with a history of deep vein thrombosis (DVT) or varicose veins.

The symptoms of stasis dermatitis usually develop gradually. Initially, you may notice that your legs and ankles feel heavy or ache towards the end of the day. Physical changes typically begin around the medial malleolus (the boney bit on the inside of the ankle).

Common signs include:

• Swelling: Usually worse in the evening and improving after a night's sleep.
• Skin Discolouration: Red, brown, or purple patches caused by iron deposits from leaked red blood cells (haemosiderin staining).
• Itching and Irritation: The skin may feel dry, tight, and extremely itchy.
• Scaling and Crustiness: The skin may become flaky or develop weepy sores.
• Lipodermatosclerosis: In advanced cases, the skin and fat under the skin become hard and scarred, making the leg look like an inverted champagne bottle.

The underlying cause is always related to venous hypertension—high pressure in the leg veins. Several factors can increase your risk of developing this chronic condition:

• Age: It is significantly more common in patients over the age of 50.
• Varicose Veins: Existing damaged veins are a primary precursor.
• History of DVT: A previous blood clot can permanently damage vein valves.
• Sedentary Lifestyle: Lack of movement reduces the 'calf pump' action that helps move blood upwards.
• Obesity: Excess weight puts significant pressure on the venous system.
• Pregnancy: Hormonal changes and increased blood volume can strain the veins.

NHS guidance suggests that maintaining a healthy weight and staying active are vital preventative measures for those at risk of venous insufficiency.

According to NICE (National Institute for Health and Care Excellence) guidelines, the management of stasis dermatitis focuses on two main goals: improving the underlying circulation and treating the skin inflammation.

1. Compression Therapy

This is the cornerstone of treatment. Professional medical compression stockings or bandages apply pressure to the legs to support the veins and reduce swelling. It is essential to have a Doppler ultrasound test (ABPI) before starting compression to ensure you do not have underlying arterial disease.

2. Emollients and Topical Steroids

To manage the skin barrier, regular use of fragrance-free moisturisers (emollients) is required. During flare-ups, a GP may prescribe moderate-to-potent topical corticosteroids (such as betamethasone or hydrocortisone) to reduce inflammation and itching.

3. Lifestyle Adjustments

Elevating your legs above the level of your heart for 20 minutes several times a day can significantly reduce venous pressure. Regular walking also encourages blood flow by engaging the calf muscles.

Ignoring stasis dermatitis can lead to serious health complications. The thin, inflamed skin is easily broken, and even a minor scratch can develop into a venous leg ulcer. These ulcers are slow to heal and often require specialist wound care. Additionally, the damaged skin barrier allows bacteria to enter, increasing the risk of cellulitis, a serious deep-skin infection that requires urgent antibiotics.

Chronic inflammation can also lead to permanent skin changes and hardening (fibrosis), which can restrict movement of the ankle joint over time.

If you have noticed persistent swelling in your ankles or changes in your skin colour, it is important to seek medical advice. You can speak to a GP online to discuss your symptoms and receive an initial assessment. An online consultation is a convenient way to determine if your symptoms require a face-to-face vascular referral or if they can be managed with digital prescriptions.

An online doctor can provide:

• Prescriptions for medicated creams and ointments.
• Advice on how to properly apply emollients.
• Sick notes if the condition is affecting your ability to stand or work.
• Guidance on which type of compression is appropriate for your stage of the condition.