Blood Clots and Cancer: What are the signs of a blood clot?

Watch these videos to learn more about cancer and thrombosis (blood clots), and what you can do to prevent blood clots.

Signs of a deep vein thrombosis (DVT) (blood clot in the legs, thighs, or arms) to watch for include:

  • Swelling of the legs, ankles, or feet, or of the arm or forearm if the clot is in the arm
  • Pain, tenderness, itching, or warmth in the legs, thighs, or arms
  • Changes in skin color, which can appear as a dusky bluish/purple color 
  • These same symptoms of swelling, color change, and pain can also happen in the arm 

Signs of a pulmonary embolism (PE) (blood clot that travels to the lungs) to watch for include:

  • Shortness of breath 
  • Chest pain
  • Cough
  • Coughing up blood 
  • Fast heart rate 
  • Dizziness

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