Blood clots are a known complication after major surgery, including knee replacement. Most people recover without a serious clot, but recognizing warning signs is important because a clot in a deep vein can sometimes travel to the lungs.
Signs of a Deep Vein Blood Clot
- New swelling in one leg, especially the calf or thigh
- Unexplained pain, tenderness or cramping in the affected leg
- Warmth or redness of the skin
- A noticeable difference between the two legs
These symptoms can have other causes after surgery, so they do not prove a clot. New or worsening symptoms should be reported promptly to the surgical or medical team.
Signs of a Pulmonary Embolism
A clot that travels to the lungs can cause sudden shortness of breath, chest pain that may worsen with breathing, rapid heartbeat, coughing or coughing up blood, dizziness or fainting. These symptoms require emergency medical attention.
Why Risk Is Higher After Surgery
Major surgery can temporarily increase clotting risk because of inflammation, reduced mobility and changes in blood flow. The risk is also influenced by personal history, age, medical conditions and the type of procedure.
How Clots Are Prevented
Depending on individual risk, the care team may recommend early movement, leg exercises, compression devices or stockings, and medication that reduces clotting. Follow the prescribed plan exactly and ask before stopping any preventive medicine.
Final Thoughts
Some swelling and discomfort are common during knee-replacement recovery, but sudden or one-sided changes deserve attention. Knowing the warning signs and following the postoperative prevention plan can help reduce risk.
