What is the term for inflammation of veins, also known as phlebitis?

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Last updated: April 8, 2025 • View editorial policy

From the Guidelines

Inflammation of veins is called phlebitis. This condition occurs when a vein becomes inflamed due to a blood clot (thrombophlebitis) or other irritation, as noted in a study published in the Mayo Clinic Proceedings 1. Phlebitis commonly affects superficial veins near the skin's surface but can also occur in deeper veins. Symptoms typically include:

  • Pain
  • Tenderness
  • Redness
  • Warmth
  • Swelling along the affected vein Treatment depends on severity but often includes anti-inflammatory medications, elevation of the affected limb, warm compresses, and compression stockings. For thrombophlebitis, blood thinners may be prescribed to prevent clot growth, with fondaparinux (2.5 mg daily) being preferred to LMWH for superficial phlebitis exceeding 5 cm in length, as recommended for 45 days 1. Phlebitis occurs because the vein wall becomes irritated and inflamed, often due to trauma, infection, or prolonged immobility. Deep vein phlebitis (deep vein thrombosis) requires immediate medical attention as it can lead to serious complications like pulmonary embolism if blood clots break loose and travel to the lungs.

From the Research

Definition of Inflammation of Veins

  • Inflammation of veins is called phlebitis 2, 3, 4.

Types of Phlebitis

  • Thrombophlebitis is defined as thrombotic inflammation of a previously healthy superficial vein 2.
  • Varicophlebitis is defined as thrombotic inflammation occurring in varicosities 2.
  • Peripheral venous catheter-associated phlebitis is caused by inflammation to the vein at a cannula access site 3.
  • Superficial venous thrombophlebitis (SVT) is characterized as a localized inflammatory condition of the venous vessels underlying the skin 4.

Causes of Phlebitis

  • Mechanical lesion such as kinking of the vein or trauma to the wall of the vein 2.
  • Primary disease such as auto-immune afflictions, endangiitis obliterans or malignancy 2.
  • Iatrogenic causes such as improper application of chemical substances or indwelling catheters or cannulas 2, 3.
  • Infection 3, 4.

References

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This information is intended for healthcare professionals. Any medical decision-making should rely on clinical judgment and independently verified information. The content provided herein does not replace professional discretion and should be considered supplementary to established clinical guidelines. Healthcare providers should verify all information against primary literature and current practice standards before application in patient care. Dr.Oracle assumes no liability for clinical decisions based on this content.