Complications

Complications from superficial thrombophlebitis are rare. However, if you develop DVT, the risk of serious complications increases. Complications might include:

• Pulmonary embolism. If part of a deep vein clot becomes dislodged, it can travel to your lungs, where it can block an artery (embolism) and become potentially life-threatening.
• Post-phlebetic syndrome. This condition, also known as post-thrombotic syndrome, can develop months or even years after you've had DVT. Post-phlebetic syndrome can cause lasting and possibly disabling pain, swelling, and a feeling of heaviness in the affected leg.