Do you have a pesky leg wound that just won't heal? Here is what you need to know about leg ulcers and how to get your legs feeling healthy again.

Have you ever noticed a small scratch or sore on your lower leg and assumed it would heal in a few days? Most minor cuts disappear quickly. But sometimes, a wound sticks around for weeks or even months without getting better.

If you are dealing with a stubborn wound on your lower leg that refuses to heal, you are not alone. These frustrating sores are known in the medical world as leg ulcers. Let us walk through what causes them, how doctors treat them, and what you can do to protect your skin.

What is a Leg Ulcer?

Simply put, a leg ulcer is an open skin sore that fails to heal even after two weeks of basic care. You will usually find these sores on your lower leg, right between your ankle and your knee.

These stubborn wounds often leak clear fluid or pus. If you do not treat them properly, they can slowly grow larger over time. Doctors classify a leg ulcer as a chronic condition if it fails to improve after three months of care.

Studies show that about one percent of adults in developed countries deal with leg ulcers. This issue becomes much more common as people get older. Among adults over the age of 65, up to four percent may experience these slow-healing sores. This is why you should never ignore a leg wound that lingers.

Why Do Leg Ulcers Happen?

Several underlying health issues can cause leg ulcers to form. Let us look at the most common reasons why these sores develop.

Chronic Venous Insufficiency.

This is the leading cause of leg ulcers. Deep inside the veins of your legs, you have tiny one-way doors called valves. These valves act like gates that push your blood upward toward your heart while stopping it from flowing backward.

When these valves stop working correctly, blood leaks backward and pools in the lower part of your leg. Think of it like a clogged water pipe building up pressure. This trapped blood increases the pressure inside your tiny blood vessels, known as capillaries.

Eventually, these tiny vessels burst. This causes skin irritation, itching, and dry patches that eventually break open into painful ulcers.

Diabetes Mellitus.

Diabetes can cause many serious health complications. High blood sugar levels over a long period damage your blood vessels, causing plaque to build up and narrow them. This is similar to rust building up inside an old metal pipe.

When these blood vessels narrow, less blood reaches your lower legs. This poor circulation often leads to nerve damage, known as diabetic neuropathy. When your nerves are weak, you might not feel a small scrape or blister on your foot or ankle.

You might squeeze your foot into a tight shoe and cause a blister without even realizing it. also, high blood sugar makes it much harder for your body to repair damaged skin.

Peripheral Artery Disease.

Peripheral artery disease, or PAD, works in a similar way to diabetes-related circulation problems. The arteries that carry oxygen-rich blood to your limbs develop fatty deposits, known as atherosclerosis. This narrows your body's main delivery highways for blood.

As a result, your lower legs do not get enough oxygen and nutrients. Even a tiny scrape takes a very long time to heal when blood supply is low. People with diabetes have a much higher risk of developing PAD.

High Blood Pressure.

High blood pressure, or hypertension, is a silent threat. If you do not manage it well, it can cause a very painful sore on your lower leg or ankle, known as a Martorell ulcer.

High pressure damages the tiny capillaries in your skin, cutting off blood supply. When skin cells lose their blood supply, they die and form an open ulcer.

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Who is Most at Risk for Leg Ulcers?

Certain people face a higher chance of developing leg ulcers than others. Let us look at who is most vulnerable:

• Women: Women develop leg ulcers about twice as often as men.
• High Body Weight: Obesity or gaining extra weight during pregnancy puts extra pressure on leg veins.
• Family History: If your close relatives have vein problems like varicose veins, you might too.
• Other Health Conditions: People with diabetes, high blood pressure, or rheumatoid arthritis face higher risks.
• Recent Surgery: Having hip replacement or knee replacement surgery can temporarily slow leg circulation.
• Injuries and Trauma: Severe physical injuries, such as broken leg bones, can damage local tissue.
• Lack of Movement: Sitting or lying down all day, or living with paralysis, limits muscle movement that pumps blood.
• Smoking: Smoking damages your blood vessels and slows down healthy blood flow.
• Other Vein Issues: Conditions like varicose veins, blood vessel inflammation, or blood clots in veins raise your risk.

What Are the Symptoms of a Leg Ulcer?

How can you tell if you have a leg ulcer? Look out for these main signs:

• A Slow-Healing Wound: This is the most obvious sign. If a cut or sore does not heal after two weeks, it may be an ulcer.
• The Look of the Sore: The wound might look red, purple, brown, or yellow. You might even see a mix of these colors along with fluid or pus draining out.
• Skin Changes: The skin around the sore may become dry, scaly, and very itchy. You might notice hard lumps or tight skin. The skin color might change to look like a bruise with red, blue, or purple tones.
• Pain: Your leg might ache or feel heavy, especially after standing up for a long time.
• Swelling: The lower part of your leg or ankle may swell up with fluid.

How Do Doctors Diagnose Leg Ulcers?

If you notice these symptoms, you should visit a doctor right away. A vascular specialist, who focuses on the circulatory system, will examine your skin and check the wound closely.

Your doctor may also suggest a few simple tests:

• Ankle-Brachial Index Test: This test uses ultrasound technology to measure your blood pressure and check how well blood flows down your legs.
• Biopsy: Your doctor takes a tiny sample of skin cells and fluid from the wound to check for infections or other skin diseases under a microscope.

How Are Leg Ulcers Treated?

Healing leg ulcers can take time. Sometimes, even with proper medical care, a wound can take many months or even years to close completely. Do not lose hope, because the right treatment makes recovery possible.

Your treatment plan depends on what caused the ulcer and the type of wound you have. Your doctor has three main goals:

1. Help the wound heal completely.

2. Reduce swelling in your lower leg.

3. Stop the ulcer from coming back once it heals.

Here are the most common treatment options:

• Compression Therapy: To help blood flow smoothly up your legs, you may need to wear special compression stockings or tightly wrapped bandages. These apply gentle pressure to push blood back up toward your heart.
• Leg Elevation: Elevating your legs above the level of your heart for at least an hour a day helps blood flow back upward. Try doing this daily for the best results.
• Wound Care: This step is vital for a quick recovery. Your doctor will clean the wound and remove any dead skin cells, a process called debridement. They will apply antiseptic creams to fight germs and change clean bandages often.
• Medicines: If bacteria infect your wound, your doctor will prescribe antibiotics. They may also give you medicines called vasodilators to widen blood vessels and boost blood flow.
• Hyperbaric Oxygen Therapy: In this special treatment, you sit inside a pressurized chamber and breathe pure oxygen. This extra oxygen enters your bloodstream and helps your wounds heal faster.
• Treating Vein Problems: If varicose veins cause your ulcers, treatments like sclerotherapy, which injects medicine into the vein, or endovascular ablation, which seals veins with heat, can help.
• Surgery: In complex cases, a surgeon may need to repair damaged veins, remove blocked vessels, or create a bypass route for blood flow.
• Skin Grafts: If your wound is larger than four inches or fails to heal with other methods, a surgeon can take healthy skin from another part of your body and graft it over the ulcer.

How Can You Prevent Leg Ulcers?

Even after a leg ulcer heals, it can come back. Take these steps to protect your skin:

• Raise your legs above your heart whenever you sit down or sleep. You can use a soft pillow for support.
• Keep your body weight at a healthy level. Stay active by taking short walks every day.
• Keep chronic conditions like diabetes, high blood pressure, high cholesterol, and Raynaud's syndrome well-controlled by following your doctor's advice.
• If you smoke, ask your doctor for help to quit right away.
• Use gentle, fragrance-free cleansers to stop your skin from drying out. Apply a rich moisturizing lotion after your bath or shower.
• Wear compression stockings or wraps as directed by your doctor to keep your blood flowing well.

What Complications Can Leg Ulcers Cause?

If you leave a leg ulcer untreated, it can lead to serious health problems.

• Bone Infections: A deep wound can spread an infection into your bones, a condition called osteomyelitis. In severe cases, doctors may need to amputate the limb.
• Cellulitis: This is a painful bacterial skin infection that causes redness, swelling, and warmth around your wound.
• Sepsis: If a wound infection enters your bloodstream, it triggers sepsis, a life-threatening medical emergency.
• Skin Cancer: Long-term, unhealed sores can sometimes turn into a type of skin cancer called squamous cell carcinoma.

What is the Outlook for Someone with a Leg Ulcer?

Leg ulcers can make it hard to walk, work, or enjoy your daily routine. You may need regular visits to wound care clinics and hospitals. Getting support from your healthcare team makes managing this condition much easier.

What Questions Should I Ask My Doctor?

When you visit your doctor, bring a list of questions to help you understand your care plan:

• "Doctor, what caused this ulcer on my leg?" .
• "What is the best treatment option for me?" .
• "What lifestyle changes should I make to heal this wound and stop new ones from forming?" .
• "What warning signs of complications should I watch out for at home?" .

Sources & References:

• Cleveland Clinic. (2025). Leg Ulcers: Causes, Symptoms & Treatment. Retrieved from Cleveland Clinic health library.
• Mayo Clinic. (2025). Leg Ulcer: Diagnosis and Management. Retrieved from Mayo Clinic patient care guidelines.
• National Health Service (NHS). (2025). Leg Ulcer Overview and Treatment. Retrieved from NHS health information portal.
• Centers for Disease Control and Prevention (CDC). (2025). Diabetes and Vascular Health. Retrieved from CDC public health resources.
• National Institutes of Health (NIH) / PubMed. (2025). Chronic Venous Insufficiency and Leg Ulcer how it happens. Retrieved from scientific review articles.