Varicose veins, venous insufficiency, and venous ulcers are just a few of the problems that can develop when you have poor circulation. If you’re thinking about seeing a vein specialist in Houston about your circulation, then watch this video to learn if you may have circulatory problems.
Quick Answer: You may have a circulatory problem if your legs ache, swell or feel heavy, if your feet are often cold, numb or discolored, if your calves cramp when you walk, or if small wounds on your legs or feet heal slowly. These signs can come from the veins (blood not returning to the heart well) or the arteries (not enough blood reaching the legs). A venous duplex ultrasound and an ankle-brachial index test can tell which system is involved, and both problems are treatable.
Bluish skin, cold or tingling hands or feet, and wounds that are slow to heal are all symptoms that can indicate a circulatory problem. If you suffer from these symptoms, then there are a few steps that you can take to improve your blood circulation. First, take a look at your lifestyle and if you do not eat a healthy diet, perform regular exercise, and stay hydrated, then consider making some changes. Also, reducing and learning how to manage your stress can help address circulatory problems. Finally, see a doctor if your symptoms do not improve.
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.
What Are Circulatory Problems in the Legs?
Your circulation is a loop. Arteries carry oxygen-rich blood from the heart down to the legs and feet, and veins carry used blood back up to the heart. A circulatory problem means something is going wrong on one side of that loop, or occasionally on both.
When the arteries narrow, usually from plaque buildup, the muscles and skin of the legs do not get enough blood, especially when they are working hard. When the veins fail, blood that should be moving upward falls back down and pools, raising pressure in the lower legs. The two problems feel different, are tested differently and are treated differently, which is why sorting out which one you have is the first job of a vascular evaluation.
In our practice, the most common leg circulation problems we see are chronic venous insufficiency, varicose veins, peripheral arterial disease (PAD) and deep vein thrombosis (DVT).
Vein Problems vs. Artery Problems: How the Symptoms Differ
Patients often say they have “poor circulation” without knowing that the phrase can describe two opposite situations. The pattern of symptoms usually points us in the right direction before any testing is done.
| Feature | Vein problem (venous insufficiency) | Artery problem (PAD) |
|---|---|---|
| Main issue | Blood pools in the legs and does not return well | Not enough blood reaches the legs and feet |
| Typical feeling | Heaviness, aching, throbbing, swelling | Cramping or burning in the calf, thigh or buttock when walking |
| When it is worse | After long standing or sitting, end of the day | During walking; eases within minutes of rest |
| Effect of raising the legs | Usually feels better | Can feel worse, especially at night |
| Skin and feet | Swollen ankles, brown staining, varicose veins | Cool, pale, shiny skin, hair loss, weak pulses |
| Wound location | Inner ankle and lower calf | Toes, heel, top of the foot |
| Key test | Venous duplex ultrasound | Ankle-brachial index and arterial ultrasound |
It is entirely possible to have both. Older adults, smokers and people with diabetes sometimes have vein reflux and narrowed arteries at the same time, and that combination changes which treatment is safe to start first.
Common Causes of Poor Circulation in the Legs
Chronic venous insufficiency and varicose veins
Inside your leg veins are small one-way valves. Each time you take a step, your calf muscle squeezes the deep veins and pushes blood upward, and the valves close behind it so it cannot fall back. When those valves stretch or fail, blood leaks backward, which is called reflux. Pressure builds at the ankle, fluid leaks into the tissue and the surface veins bulge. This is chronic venous insufficiency, and it is the most common cause of leg circulation symptoms we treat.
Peripheral arterial disease
PAD is caused by atherosclerosis, the same fatty plaque that causes heart attacks and strokes. As the leg arteries narrow, muscles run short of oxygen during exercise and cramp. In advanced cases the feet do not get enough blood even at rest. PAD is also a marker of higher heart and stroke risk, so finding it matters beyond the legs. Our page on peripheral arterial disease explains the condition and its treatment in more depth.
Deep vein thrombosis
A DVT is a blood clot in a deep vein, usually in the calf or thigh. It can block flow back to the heart and cause sudden swelling and pain in one leg. The bigger danger is that part of the clot can break off and travel to the lungs. Even after a DVT is treated, it can leave scarred valves behind and lead to long-term swelling and skin changes.
Other contributors
Smoking, diabetes, high blood pressure, high cholesterol, excess weight and long periods of inactivity all strain the circulation. Some medications and hormonal therapies can also raise clot risk. Cold, color-changing fingers and toes can be a sign of Raynaud’s phenomenon, which is a different condition affecting the small arteries and is usually managed by a primary care doctor or rheumatologist.
Warning Signs of Circulatory Problems You Should Not Ignore
Beyond the general symptoms most people know about, there are some specific clues that tell us circulation in the legs has been under strain for a while:
- Swelling that is worse in one leg than the other
- A brownish or reddish-purple band of skin above the ankles
- Itchy, scaly, eczema-like patches on the lower leg
- Skin that feels hard, tight or woody near the ankle
- Calf pain that reliably starts after walking a certain distance and stops when you rest
- Toenails that grow slowly or thicken, and loss of hair on the lower legs
- One foot that is noticeably colder or paler than the other
- Cuts or blisters on the feet or lower legs that take weeks to close
None of these on its own makes a diagnosis, but each one is a good reason to have your circulation tested rather than waiting to see if it settles.
Who Is at Higher Risk?
Vein and artery problems have some shared and some different risk factors. Knowing which group you fall into helps you and your doctor know what to look for.
- Vein problems: family history of varicose veins, pregnancy, jobs with long hours of standing or sitting, excess weight, a previous blood clot, and older age
- Artery problems: smoking, diabetes, high blood pressure, high cholesterol, kidney disease, a history of heart disease or stroke, and age over 50
- Clot risk: recent surgery or hospital stay, long travel, cancer, pregnancy and the weeks after delivery, hormone therapy and some inherited clotting conditions
Why diabetes and smoking deserve special attention
Diabetes and smoking are the two risk factors we pay the closest attention to, because they damage circulation in several ways at once. High blood sugar injures the lining of small and large arteries, speeds up plaque formation and tends to affect the arteries below the knee, which are harder to treat. Diabetes can also damage the nerves in the feet, so a person may not feel a blister or cut until it has become a deeper wound.
Smoking narrows and stiffens arteries, makes the blood more likely to clot and slows wound healing. People who smoke and have diabetes face a much higher chance of developing PAD, and of developing it earlier. The encouraging part is that the benefits of quitting begin quickly, and good blood sugar control protects both the arteries and the nerves. If you have either risk factor, regular foot checks and a low threshold for a circulation test are sensible.
How We Evaluate Circulation Problems at Premier Vein
A circulation workup should answer three questions: is the problem in the veins, the arteries or both; where exactly is it; and how severe is it. Our evaluation follows a clear sequence:
- Focused history. We ask what you feel, when it happens, what eases it, and about smoking, diabetes, previous clots, pregnancies and family history.
- Physical exam. We look at the skin, swelling and visible veins, check pulses in the feet and compare temperature and color between the legs.
- Ankle-brachial index (ABI). Blood pressure cuffs on the arms and ankles compare pressures. A low ankle reading suggests narrowed arteries. This is quick and painless.
- Venous duplex ultrasound. In our IAC-accredited vascular lab, we map the superficial and deep leg veins, measure reflux and check for clot. Arterial ultrasound is added when the ABI or exam points to PAD.
- A clear plan. We go through the findings with you, explain which vessels are responsible and outline the next steps, whether that is lifestyle change, compression, medication or a minimally invasive procedure.
Treatment Options for Leg Circulation Problems
For vein problems
Graduated compression stockings, regular walking and leg elevation help control symptoms. When an ultrasound shows reflux that is causing symptoms or skin changes, the faulty vein can be closed from the inside. Endovenous thermal ablation and non-thermal ablation seal the vein through a single needle puncture under local anesthesia, and blood reroutes through healthy veins. Smaller veins can be treated with sclerotherapy. Most patients walk out of the office and resume normal daily activity within a day or two.
For artery problems
PAD treatment starts with protecting the arteries: stopping smoking, a structured walking program, and medications for cholesterol, blood pressure and blood clotting as directed by your physician. When narrowing limits walking significantly or threatens the foot, catheter-based procedures can reopen the artery from the inside through a small puncture.
For blood clots
A DVT is treated with blood thinners in most cases, and some patients benefit from procedures to remove or dissolve a large clot. Follow-up imaging and compression help reduce the risk of long-term swelling.
Simple Ways to Support Healthy Circulation
Lifestyle changes will not reverse failed vein valves or remove arterial plaque, but they make a real difference to symptoms and to how quickly problems progress.
- Walk most days; even 20 to 30 minutes keeps the calf muscle pump working and encourages new arterial pathways in PAD
- Stand up and move every 30 to 60 minutes when sitting for work or travel
- Do ankle pumps and calf raises while seated or standing in one place
- Stop smoking, which is the single most important step for artery health
- Keep blood sugar, blood pressure and cholesterol in your target range
- Inspect your feet daily if you have diabetes or numbness
Call 911 or seek emergency care if you have:
- Sudden pain, swelling and warmth in one leg, which may be a deep vein thrombosis
- Sudden shortness of breath, chest pain or coughing up blood
- A leg or foot that suddenly becomes cold, pale, numb or weak
- A wound with spreading redness, red streaks, fever or chills
- Bleeding from a varicose vein that will not stop with firm pressure and elevation
When to See a Vein and Vascular Specialist in Houston
If your legs ache, swell, cramp when you walk or are slow to heal, it is reasonable to ask for a vascular evaluation rather than waiting for symptoms to become severe. Our vein clinic in Houston performs both venous and arterial testing in an accredited vascular lab, so we can tell you which problem you have in one visit. Dr. Syed Raza is a fellowship-trained interventional radiologist with more than 15 years of experience treating venous reflux and PAD. We serve Houston, Katy and the surrounding area, usually offer same-week appointments and accept most insurance plans, including Medicare. Call (832) 321-5355 to schedule.
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 are the first signs of poor circulation in the legs?
Early signs often include leg heaviness or aching after standing, ankle swelling by evening, cold feet, and calf cramping during walking. Skin changes such as discoloration or slow-healing cuts tend to appear later and suggest the problem has been present for some time.
How do doctors check circulation in your legs?
The two main tests are the ankle-brachial index, which compares blood pressure at the ankle and arm to check the arteries, and a venous duplex ultrasound, which shows blood flow and valve function in the veins. Both are painless and done in the office.
Can poor circulation be reversed?
Many circulation problems can be improved significantly. Vein reflux can be treated by closing the faulty vein, and PAD symptoms often improve with walking programs, quitting smoking, medication and, when needed, procedures to reopen narrowed arteries.
Is leg swelling a sign of poor circulation?
Swelling around the ankles is one of the most common signs of venous insufficiency, especially if it is worse at the end of the day. Swelling in only one leg, or swelling that appears suddenly with pain, should be checked promptly to rule out a blood clot.
What kind of doctor treats circulation problems in the legs?
Leg circulation problems are treated by vascular specialists, including interventional radiologists and vascular surgeons. Your primary care doctor can help manage risk factors such as blood pressure, cholesterol and diabetes.
Are compression socks good for poor circulation?
Compression socks help when the problem is in the veins because they support blood flow back toward the heart and reduce swelling. They are not appropriate for everyone with artery disease, so your arterial circulation should be checked before strong compression is used.
Why are my feet always cold?
Cold feet can come from narrowed leg arteries, but they are also common with cold surroundings, low thyroid function, nerve problems or Raynaud’s phenomenon. If one foot is colder or paler than the other, or cold feet come with calf pain on walking, an ankle-brachial index test is a good first step.
Trusted Health Resources
- Chronic Venous Insufficiency, Society for Vascular Surgery
- Venous Insufficiency, MedlinePlus Medical Encyclopedia (NIH)
- Varicose Veins and Spider Veins, MedlinePlus (NIH)