How to Check for Blood Clot in Your Leg

Medically reviewed by Mohammad Khalilullah, MD, DABVLM, on November 26, 2025

A blood clot in the leg is a serious medical condition that requires prompt attention. Many people are unaware that chronic venous insufficiency (CVI), a common form of vein disease and the main cause of varicose veins, can increase the risk of this condition, also called deep vein thrombosis (DVT).

Recognizing the connection between vein disease and DVT can help you detect symptoms early and protect your health. Early diagnosis allows for safe, effective treatment that prevents complications and supports better circulation. In this blog, Mohammad Khalilullah, MD, DABVLM, lead vein physician at Center for Vein Restoration (CVR) in Winchester, VA, discusses what DVT is, break down each of its symptoms, and share expert tips on checking for the condition in the comfort of your own home.

📅 To schedule an appointment with Dr. Khalilullah in Winchester, VA, CLICK HERE.

📅 Not near Winchester? Book a consultation online at one of CVR’s 120+ nationwide clinics: CLICK HERE.

As the nation’s largest physician-led vein center, CVR helps patients identify vein problems before they become dangerous.

📞 If you suspect a blood clot, don’t wait! Call CVR’s DVT Hotline at 877-SCAN-DVT (844-568-3691) for same-day evaluation and care.

What Is DVT?

DVT occurs when a blood clot forms in a deep vein, most often in the legs. The clot can block blood flow, leading to swelling, pain, and tenderness.

If left untreated, the clot can break off, travel to the lungs, and cause a pulmonary embolism (PE), which is life-threatening.

According to the Cleveland Clinic, people with CVI have slower blood flow, which increases the chance of clot formation.

Not All Leg Blood Clots Are DVTs

It’s important to understand that while all DVTs are leg blood clots, not all leg blood clots are DVTs. Some clots develop in superficial veins closer to the skin’s surface, known as superficial vein thrombosis. These clots are usually less serious, but they may still cause discomfort, swelling, or redness. The symptoms of different clot types can appear similar, so it’s important to have any suspected clot evaluated by a vein specialist or healthcare provider. Only diagnostic imaging, such as an ultrasound, can identify the type and location of a clot and ensure the right treatment.

Common DVT Risk Factors

• Long periods of sitting or bed rest
• Recent surgery or injury
• Obesity
• Pregnancy or hormone therapy
• Smoking
• Family history of blood clots
• Certain medical conditions, such as cancer or heart disease

Recognizing Blood Clot Symptoms

Symptoms of DVT can range from mild to severe, and some people have no symptoms at all. Common warning signs include:

• Swelling in one leg, ankle, or foot
• Pain or tenderness in the calf or thigh
• Warmth or redness in the affected area
• Skin discoloration or visible surface veins

Medical testing is the only way to confirm a blood clot, since these signs can resemble other conditions.

If you experience these symptoms, contact CVR’s DVT Rule-Out Service at 877-SCAN-DVT (844-568-3691). Our specialists provide same-day ultrasound testing, quick results, and treatment when needed, helping you avoid an unnecessary emergency room visit.

Checking for a Blood Clot at Home

Only a healthcare provider can diagnose DVT, but you can keep an eye on your leg health and note any changes to help your doctor assess your risk.

1. Compare Both Legs

Check both legs for swelling, redness, or discoloration. One leg appearing larger or warmer than the other may indicate a problem.

2. Feel for Tenderness or Firmness

Gently press along your calf and behind the knee. A clot can make the area feel sore or firm.

3. Measure Leg Size

Use a tape measure to compare both calves at the same point. A difference of more than one inch (about three centimeters) could suggest swelling related to a clot.

4. Check for Pitting Edema

Press your finger into the lower leg for several seconds. If the indentation stays, it may signal fluid buildup and possible circulation problems.

5. Know When to Seek Help

The last step is the most important. If you notice swelling, redness, warmth, or tenderness in one leg, especially in the calf, contact a healthcare provider immediately. Only a medical test can confirm a diagnosis of a blood clot. Getting checked early helps ensure you receive the right treatment and prevents the clot from getting worse. When in doubt, seek care as soon as possible.

Seeking Immediate Care

A blood clot that travels to the lungs can cause a PE, which is an emergency. Call 911 or go to the hospital if you have:

• Sudden shortness of breath
• Sharp chest pain that worsens when you breathe deeply
• Rapid heartbeat
• Coughing up blood

DVT Treatment Options

Treatment aims to prevent the clot from growing, stop new clots from forming, and reduce complications.

1. Anticoagulant Medications
Blood thinners lower the blood’s ability to clot and allow the body to break down existing clots naturally.

2. Compression Stockings
Medical-grade compression stockings improve circulation and help relieve swelling.

3. Lifestyle Changes
Maintaining a healthy weight, exercising regularly, and quitting smoking all support better circulation and lower your risk.

4. Routine Follow-Up Care
Ongoing care ensures your medication remains effective and that your circulation continues to improve.

Preventing DVT

You can reduce your DVT risk by supporting healthy blood flow every day.

• Stay active and move your legs often.
• Avoid sitting or standing for long periods.
• Drink plenty of water.
• Maintain a healthy body weight.
• Wear compression stockings during long trips.
• Follow your doctor’s plan for managing vein conditions such as CVI or varicose veins.

Prevention is the best protection. Small daily habits make a major difference in your long-term vein health.

DVT and Natural Remedies

A healthy diet supports vein function, but it can’t replace professional medical treatment. Foods rich in omega-3 fatty acids, garlic, ginger, and turmeric may promote healthy circulation, but they don’t dissolve clots.

Always consult your doctor before taking new supplements or incorporating home remedies into your care regimen, especially if you’re on prescription blood thinners.

Get Expert Help for DVT from CVR

Vein disease increases the risk of DVT, but early diagnosis and treatment can prevent serious complications.

At CVR, our board-certified physicians use advanced imaging and personalized care to safely and effectively detect and treat DVT.

If you suspect a clot or want to address vein disease symptoms before complications occur, call CVR’s DVT Rule-Out Service at 877-SCAN-DVT (877-722-6388) or click the button below to schedule a consultation at your nearest CVR location today.

Frequently Asked Questions

1. Can I identify a blood clot without medical testing?
No. Some clots cause pain and swelling, while others show no symptoms. Only medical testing can confirm a DVT.

2. Can exercise help prevent blood clots?
Yes. Regular walking, stretching, and light leg exercises improve circulation and reduce the risk of clot formation.

3. Are blood clots more common in people with varicose veins?
Varicose veins can slow circulation and increase the risk of blood clots. Treating underlying vein problems improves blood flow and lowers that risk.