If you have been diagnosed with chronic venous insufficiency, then you may be at risk for venous ulcers in Houston. It’s important to be aware of the causes and symptoms of venous ulcers so you can seek immediate treatment if necessary.
Quick Answer: Venous ulcer treatment has two jobs that work together. The first is healing the wound: graduated compression to control swelling, dressings that manage drainage and protect the skin, leg elevation and regular walking. The second is fixing the cause: a venous duplex ultrasound finds the leaking veins that keep pressure high at the ankle, and closing them with an office procedure such as vein ablation or foam sclerotherapy helps the ulcer heal faster and lowers the chance it comes back. An arterial check comes first, because strong compression is unsafe if leg arteries are narrowed.
Meet your vein specialist
Dr. Syed Raza, MD
Vascular & Interventional Radiology · Founder, Premier Vein & Vascular Center
Fellowship-trained interventional radiologist certified by the American Board of Radiology and the Royal College of Radiologists (UK). Former Chief of Interventional Radiology at UTMB Galveston and Memorial Hermann Memorial City, with 15+ years treating varicose veins, venous reflux and peripheral arterial disease.
Causes of Venous Ulcers
Typically caused by poor circulation in the legs, venous ulcers are often a result of chronic venous insufficiency. Each vein in your legs contains valves that are designed to keep the blood flowing in one direction. The oxygen-poor blood in your legs is supposed to be pumped back toward the heart, but in the case of venous insufficiency due to damaged valves, the blood flows backward and pools in the veins of the legs. Over time, as the blood continues to fall downward, fluids may leak from the pressured veins into nearby tissues. These fluids suffocate cells in the tissues by preventing oxygen and other nutrients from reaching them. As cells die, the surrounding tissues are damaged and can break down, potentially leading to an ulceration of the skin.
Symptoms of Venous Ulcers
Early signs that a venous ulcer may be developing include an area of skin that becomes dark red or purple and skin that feels thick, hardened, itchy, or dry. If these symptoms aren’t treated, an ulcer can result. The sore may be painful, and your legs may feel achy or swollen. It’s essential to see a doctor as soon as you suspect an ulcer may be forming, or if an ulcer does develop. The sooner your wound is treated, the faster your healing process is likely to be.
Treatments for Venous Ulcers
Improving the blood circulation is the first step in treating venous ulcers. Walking daily, wearing compression stockings, and keeping your legs elevated can all prevent blood from pooling in your veins and leaking into the nearby tissues. It is imperative to treat the underlying venous insufficiency to speed up venous ulcer healing. This can be accomplished by in-office procedures such as endovenous ablation.
What Venous Ulcer Treatment Needs to Achieve
Patients often come to us after weeks or months of dressing changes with little progress. That is usually not because the wound care was poor. It is because a venous ulcer is the visible end of a pressure problem, and the pressure keeps working against the wound every hour you are upright.
Effective venous ulcer treatment therefore has two goals. The first is to give the wound the conditions it needs to close: less swelling, a clean and moist surface, protected surrounding skin and no infection. The second is to lower the pressure in the veins around the ankle so the tissue can stay healthy once it has healed. When only the first goal is addressed, ulcers often close slowly and reopen. When both are addressed, healing is usually faster and more durable.
How to Tell a Venous Ulcer From Other Leg Wounds
Several different conditions can cause an open sore on the lower leg, and they are not treated the same way. A few features help point toward a venous cause, but a proper vascular assessment is the only reliable way to be sure.
| Clue | Points toward a venous ulcer | Points toward another cause |
|---|---|---|
| Location | Lower calf and just above the ankle, often the inner side | Toes, heel or sole of the foot (arterial or diabetic); bony pressure points (pressure injury) |
| Swelling | Leg swelling that improves overnight | Little swelling, or swelling of the whole leg that came on suddenly |
| Surrounding skin | Brown staining, eczema, firm or woody skin | Cool, pale, shiny or hairless skin; thick callus |
| Pain pattern | Aching that eases when the leg is raised | Pain that worsens when the leg is raised or at night |
| Pulses at the foot | Usually present | Weak or absent pulses suggest arterial disease |
| History | Long-standing varicose veins or a previous leg clot | Diabetes with numb feet, smoking, recent injury |
It is also common for a patient to have more than one factor at once, for example vein reflux together with narrowed arteries or diabetes. Recognizing a mixed picture early changes how much compression is safe and which problem we treat first.
Why Some Venous Ulcers Refuse to Heal
When an ulcer has been open for more than a few weeks, we look for the reasons it is stuck. The most common ones are:
- Ongoing vein reflux. Leaking superficial or perforator veins keep pushing high pressure into the skin around the wound.
- Inconsistent compression. Bandages that slip, stockings that are too loose, or long breaks from compression allow swelling to return.
- Unrecognized arterial disease. Reduced blood supply slows every stage of repair and can make compression harmful.
- Infection or heavy bacterial load. Increasing pain, odor, spreading redness or a change in drainage can signal infection.
- Too little movement. A stiff ankle or long hours sitting with the legs down weakens the calf pump.
- General health factors. Smoking, poorly controlled diabetes, poor nutrition, heart failure and some medications all slow wound healing.
Identifying which of these apply to you is the starting point of a treatment plan that actually moves the wound forward.
How We Evaluate a Venous Ulcer at Premier Vein
At Premier Vein & Vascular Center, the first visit focuses on understanding the cause before deciding on treatment.
- Focused history. We ask how long the wound has been present, what has been tried, previous clots or vein procedures, medications, diabetes, smoking and how much time you spend on your feet.
- Examination of the leg and wound. We look at the size, depth and edges of the ulcer, the surrounding skin, swelling and the pulses in the foot.
- Ankle-brachial index. This simple blood pressure comparison between the ankle and the arm tells us whether the arteries are healthy enough for compression.
- Venous duplex ultrasound. In our IAC-accredited vascular lab, we map the superficial, perforator and deep veins, measure reflux and look for old or new clot. The scan shows precisely which veins are feeding pressure into the wound.
- A clear, coordinated plan. We explain the findings, outline how compression, wound care and vein treatment will fit together, and coordinate with your wound care nurse or primary care doctor.
Compression Therapy: The Foundation of Healing
Compression gently squeezes the lower leg, with the most pressure at the ankle and less higher up. This pushes fluid out of the tissues, narrows the stretched veins so their valves work a little better, and helps the calf muscle push blood upward with every step. For most venous ulcers, it is the single most important part of wound care.
Types of compression
- Multilayer bandage systems are applied by a trained nurse, usually once or twice a week, and are often used while the ulcer is open and draining.
- Adjustable wraps use hook-and-loop straps that patients or caregivers can tighten as swelling goes down.
- Ulcer stocking kits combine a light liner with an outer stocking and are easier to put on over a dressing.
- Medical-grade compression stockings are the long-term choice once the ulcer has healed.
Compression can feel uncomfortable at first, especially when swelling is significant. Discomfort usually eases within days as the swelling goes down. If the toes become numb, cold, blue or very painful, the compression should be removed and your care team contacted.
Treating the Veins Underneath the Ulcer
Once the ultrasound shows which veins are leaking, closing them lowers the pressure at the ankle. This is the step that turns a slow-healing wound into one that can close and stay closed. Treatment does not have to wait until the ulcer has healed; in many patients it is done while the wound is still open.
- Endovenous thermal ablation seals a refluxing saphenous vein from the inside using heat delivered through a thin catheter.
- Non-thermal ablation closes the vein with a medical adhesive or a chemical agent and needs fewer numbing injections.
- Ultrasound-guided foam sclerotherapy reaches the small, twisting veins and perforators directly beneath or around the ulcer.
These treatments are done in the office under local anesthesia. Most take about an hour, and you walk out afterward. Walking is encouraged from the same day, and compression continues as part of the wound plan. When the deep veins are also damaged, for example after a previous clot, treating the superficial reflux still takes a meaningful amount of pressure off the skin.
Caring for a Venous Ulcer at Home
What happens between visits matters as much as what happens in the clinic. These habits support healing:
- Keep compression on as directed and do not cut or roll down bandages
- Raise your legs above the level of your heart for 20 to 30 minutes three or four times a day
- Walk several times a day, and do ankle circles and heel raises when sitting
- Avoid sitting with your legs hanging down for long periods, including sleeping in a chair
- Moisturize the dry skin around, but not on, the wound with a plain, fragrance-free emollient
- Do not apply over-the-counter creams, powders or home remedies to the wound without advice
- Eat enough protein, keep blood sugar under control and stop smoking
Seek urgent medical care if you notice:
- Spreading redness, warmth, red streaks, fever or chills around the ulcer
- A sudden increase in pain, drainage or a foul odor
- Sudden swelling and pain in one leg, which can be a deep vein thrombosis
- Chest pain or sudden shortness of breath
- Toes that turn cold, pale, blue or numb under compression
- Bleeding from the wound or a nearby vein that does not stop with firm pressure and elevation
Keeping a Healed Ulcer From Coming Back
The skin over a healed venous ulcer stays fragile, and the conditions that caused it do not disappear when the wound closes. Long-term prevention includes wearing compression stockings every day, treating any remaining refluxing veins, staying active, keeping a healthy weight, caring for the skin and acting quickly on early warning signs such as new itching, darkening or swelling. A follow-up ultrasound is worthwhile if symptoms return, because new reflux can develop over time.
We also encourage patients to check their lower legs every day, ideally in the evening when swelling is greatest. Look for new areas of redness, darkening, weeping or a small break in the skin, and feel for spots that are newly hard or tender. Catching a problem at this stage often means it can be managed with closer compression and a prompt visit, rather than a new open wound. Replace compression stockings every few months, because the elastic loses strength with washing and wear, and bring them to your follow-up appointments so the fit can be checked.
Venous Ulcer Treatment in Houston
If you have a wound on the lower leg that has not healed within a few weeks, or skin changes around the ankle that are getting worse, a vascular evaluation can show what is holding healing back. Dr. Syed Raza is a fellowship-trained interventional radiologist and former Chief of Interventional Radiology at UTMB Galveston and Memorial Hermann Memorial City, with more than 15 years of experience treating venous reflux. Patients from across Houston and Katy come to us for testing and treatment, and we work alongside your wound care team. If you are looking for a vein doctor in Houston, same-week appointments are usually available, and most insurance plans, including Medicare, are accepted. You can read more on our venous ulcer page.
Talk With a Specialist at Premier Vein
Have questions about your symptoms or treatment options? Dr. Syed Raza and the team at Premier Vein & Vascular Center can evaluate your concerns and explain your options clearly. Same-week appointments are usually available, and most insurance plans are accepted.
Frequently Asked Questions
What is the fastest way to heal a venous ulcer?
The fastest, most reliable healing usually comes from combining consistent compression and good wound care with treatment of the leaking veins that cause the ulcer. Elevating the legs, walking regularly and controlling infection also help. An ultrasound is needed to find the veins responsible.
Can I treat a venous leg ulcer at home?
Much of the daily care happens at home, including compression, elevation, walking and skin care. However, a venous ulcer should be assessed by a medical provider, because arterial disease, infection and the underlying vein problem all need professional evaluation and treatment.
Is it safe to have vein ablation while an ulcer is still open?
For many patients, yes. Vein ablation is performed through a needle puncture away from the wound, and treating the reflux early can help the ulcer heal. Your specialist will confirm whether it is appropriate based on your ultrasound and overall health.
Why does my venous ulcer keep coming back?
Ulcers usually return because the vein pressure that caused them is still present, or because compression was stopped after healing. Treating any remaining refluxing veins and wearing compression stockings daily are the most effective ways to prevent recurrence.
Do venous ulcers need antibiotics?
Not routinely. Antibiotics are used when there are signs of infection, such as spreading redness, warmth, increasing pain, fever or a change in drainage. Most venous ulcers are not infected and heal with compression, wound care and vein treatment.
How do I know if compression is too tight?
Compression should feel firm but not painful. If your toes become numb, tingly, cold, pale or blue, or if pain increases sharply, remove the compression and contact your care team promptly.
Trusted Health Resources
- Chronic Venous Insufficiency, Society for Vascular Surgery
- Venous Insufficiency, MedlinePlus Medical Encyclopedia (NIH)
- Varicose Veins and Spider Veins, MedlinePlus (NIH)