Post-thrombotic syndrome

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Post-thrombotic syndrome (also called postphlebitic syndrome) is a complication of a blood clot that forms in a deep vein. Post-thrombotic syndrome occurs because of damage to the vein caused by the blood clot (thrombosis).

Post-thrombotic syndrome can be a long-term problem that lasts for years. It can cause sores that are painful and hard to treat.

The symptoms include:

  • Pain, discomfort, swelling, or itching.
  • Slow-healing sores.
  • Brownish discoloration or darkening of the skin.
  • Fragile skin on the area, which bruises easily. The skin may be dry and may peel.

Compression stockings may be used to reduce swelling and relieve symptoms.




The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.