DVT Prevention: Simple Steps For Preventing Blood Clots After Surgery

By Author : Suryani Dutta
  calender 07 August,2025
DVT Prevention: Simple Steps For Preventing Blood Clots After Surgery

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Complete Guide on How to Prevent Blood Clots After Surgery

Surgery is a vital part of treating various medical conditions, but it also puts the body under significant stress. During and after the operation, your body activates healing processes. In many cases, this can increase the risk of blood clots. 

One of the most serious complications is deep vein thrombosis (DVT). A condition where clots form in the deep veins, primarily in the legs. If a clot breaks loose, it can travel to the lungs and cause a life-threatening condition called pulmonary embolism (PE). 

Fortunately, the DVT prevention routine has become a core part of post-operative care, especially for patients undergoing orthopedic, abdominal, or cancer-related surgeries. Also, by following simple guidelines and being aware of the signs, patients significantly reduce the chances of developing blood clots after surgery and enjoy a safer recovery. 

In this blog, we will walk you through the primary steps to reduce the risk of clotting. Our steps are aimed at keeping your circulation healthy even after surgery. 

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What Is DVT and Why Does It Matter?

Deep vein thrombosis (DVT) occurs when a blood clot forms in one of the deep veins, typically in the lower leg or thigh. After surgery, limited movement can slow down blood flow, which increases the chances of clot formation. If left untreated, a DVT can break off and travel to the lungs, leading to a life-threatening pulmonary embolism (PE).

Common symptoms of DVT include:

  • Swelling in the leg
  • Pain or tenderness, often in the calf
  • Red or discolored skin
  • A feeling of warmth in the affected leg

However, not all DVTs cause noticeable symptoms, making prevention even more critical.

Why Surgery Increases DVT Risk?

Surgeries, especially orthopedic, abdominal, or pelvic procedures, place patients at a higher risk of developing DVT for several reasons:

  • Immobility: Extended bed rest after surgery can slow circulation in the legs
  • Tissue Damage: Surgical trauma may trigger the body’s clotting mechanism
  • Inflammation: Surgery often results in inflammation, which contributes to clot formation
  • Use of Anesthesia: General or spinal anesthesia may impact blood flow

Understanding these risk factors is the first step toward DVT prevention and a safer recovery process.

Below is a breakdown of the types of surgeries most commonly associated with DVT risk:

Surgeries with Highest Risk of DVT

As shown, orthopedic surgeries like knee or hip replacements account for the highest risk (40%), followed by abdominal (25%) and cancer-related procedures (20%).

Modern protocols encourage personalized assessments for VTE and bleeding risks, helping to shape effective prevention strategies. This approach ensures that each patient receives care according to their specific needs, making prevention efforts more effective and supportive.

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Simple Steps for DVT Prevention After Surgery

1. Start Moving Early (as Directed)

One of the most effective methods of DVT prevention is early mobilization. Doctors often recommend getting up and walking as soon as it’s safe post-surgery. Even light leg movements in bed, like ankle rolls or flexing your toes, can help keep the blood flowing.

Tip: Set a timer to remind yourself to move your legs every hour while awake, even if you're lying down.

2. Wear Compression Stockings

Compression stockings help improve circulation by applying gentle pressure to the legs, reducing venous stasis (blood pooling). They’re often prescribed after procedures like hip or knee replacements and can significantly lower the risk of blood clots after surgery. However, stockings are not suitable for patients with certain vascular diseases, neuropathy, or skin conditions.

Make sure to:

  • Wear them as prescribed (usually during the day)
  • Ensure the correct size and fit
  • Avoid folding or rolling the tops down, as it may restrict blood flow

3. Stay Hydrated

Adequate hydration keeps the blood from becoming too thick. Dehydration, which often occurs after surgery due to fasting, medications, or reduced intake, can increase the risk of clots.

Tip: Aim for 8–10 glasses of water per day unless advised otherwise by your physician.

Always follow physician-specific guidance on fluid restrictions

4. Take Anticoagulant Medication (If Prescribed)

Doctors may prescribe blood thinners (anticoagulants) for high-risk patients after surgery. These medications help prevent clot formation. Commonly used anticoagulants include warfarin, enoxaparin, and newer oral agents like apixaban or rivaroxaban.

Be sure to:

  • Follow dosage instructions carefully
  • Watch for side effects like unusual bruising or bleeding
  • Inform your healthcare provider about any other medications you're taking

For orthopedic surgeries (like hip/knee replacements), prophylaxis is often needed for at least 10–14 days, and sometimes up to 35 days after surgery.

5. Use Mechanical Devices

Hospitals often use pneumatic compression devices, cuffs that inflate and deflate, to mimic the natural pumping of leg muscles. These are especially beneficial for immobile patients and work well alongside other methods of DVT prevention.

Mechanical methods like sequential compression devices are mainly used when medication isn't suitable, such as for patients with a high bleeding risk, or alongside other treatments. They're not typically the only preventive measure for patients at high risk.

6. Avoid Smoking

Smoking affects circulation and increases your risk of blood clots. If you're scheduled for surgery, consider quitting before the procedure and avoid resuming afterwards. Many hospitals offer cessation support to help patients make this transition.

7. Manage Other Risk Factors

Your risk of developing DVT increases if you have:

  • A history of blood clots
  • Obesity
  • Cancer
  • Hormonal therapy
  • Varicose veins
  • Chronic illness

If you fall into one or more of these categories, your doctor will create a personalized prevention plan for you.

8. Elevate Your Legs

Elevating your legs above heart level can help reduce swelling and improve blood flow. Use a pillow or cushion to support your legs while lying down. This simple trick can support overall circulation and help prevent blood clots after surgery.

9. Follow Post-Op Instructions Closely

Adhering to your surgeon's aftercare plan is critical. This includes attending follow-up appointments, taking medications on time, and reporting any unusual symptoms immediately. Early detection and intervention can stop a clot from becoming life-threatening.

When to Seek Immediate Help?

Call your doctor or go to the emergency room if you experience:

  • Sudden shortness of breath
  • Chest pain or rapid heartbeat
  • Coughing up blood
  • Severe swelling or pain in the leg

These may be signs of a pulmonary embolism and require urgent care.

Takeaway: Be Proactive, Not Passive

Preventing complications after surgery is not entirely the doctor’s job. Patients have a decisive role as well. Whether it is recovering from a minor operation or a major procedure, our simple steps, which we mentioned above, can help you stay safe. Remember, precaution is better, and DVT prevention is most successful when approached with a combination of medical guidance and patient action. 

You are taking a crucial step towards recovery by staying active, hydrated, and being aware of your body. Preventing blood clots after surgery doesn’t have to be complicated if we follow a few consistent habits, like wearing compression stockings and taking prescribed medications, or getting up to walk: simple habits but a big difference. 

If you are looking for reputed doctors and hospitals for consultation, contact MediJourney today. Our case manager can guide you and help you with the logistics as well. 

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Author

B.Sc in Media Science, NSHM Knowledge Campus, Kolkata, 2019-2022

Suryani Dutta is a passionate content writer with a background in media studies, equipping her with a deep understanding of storytelling, audience engagement, and digital trends.

Reviewer

Chairman
Cardiac Electrophysiologist, Interventional Cardiologist

BLK-Max Super Speciality Hospital, New Delhi

Dr. T.S. Kler, a Padma Bhushan awardee and the Chairman of Fortis Heart & Vascular Institute, transformed the field of electrophysiology in India through over 35,000 angioplasties and innovative device implants. After earning the MRCP (UK) in 1989, he launched India's first electrophysiology lab at Escorts Heart Institute in 1993, where he conducted the country's first ICD implant in 1995 and the first CRT-D implant in 2000. His introduction of HIS bundle pacing in 2015 resulted in a 30% improvement in cardiac synchronization outcomes. He is one of the leading doctors in Gurgaon, India, and he is currently focused on integrating AI-driven models for arrhythmia prediction, analyzing over 10,000 ECGs with a machine learning algorithm....

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