Phlebitis: Causes, Symptoms & Treatment
Phlebitis is inflammation of a vein — most commonly in the legs — that causes redness, warmth, and pain along the affected vessel. It is closely linked to varicose veins and chronic venous insufficiency, and requires prompt evaluation to rule out blood clot involvement.
What Is Phlebitis?
Phlebitis — also called thrombophlebitis when a blood clot is involved — is inflammation of the wall of a vein. It most commonly occurs in the legs and is frequently associated with underlying venous disease such as varicose veins or chronic venous insufficiency.
There are two main types: superficial phlebitis, which affects veins near the skin surface and is generally less serious, and deep vein thrombosis (DVT), which affects deeper veins and carries a risk of the clot traveling to the lungs (pulmonary embolism).
Both types require medical evaluation. Our vein specialists use duplex ultrasound to accurately diagnose phlebitis, identify any clot involvement, and develop an appropriate treatment plan — including addressing the underlying venous disease to prevent recurrence.
Common Symptoms
- Redness, warmth, and tenderness along a vein
- A hard, cord-like lump under the skin
- Swelling in the affected area
- Skin discoloration (red or brownish)
- Low-grade fever in some cases
- Pain or burning sensation along the vein
- Itching around the inflamed vein
Who Is at Risk for Phlebitis?
Varicose Veins
Patients with varicose veins have a significantly higher risk of developing superficial phlebitis due to sluggish blood flow in the diseased veins.
Prolonged Inactivity
Long flights, bed rest, or extended sitting slows blood flow and increases the risk of clot formation and vein inflammation.
Recent Surgery or Injury
Trauma to a vein — including IV catheter placement or surgical procedures — can trigger an inflammatory response.
Blood Clotting Disorders
Inherited or acquired conditions that increase blood clotting tendency (thrombophilia) raise the risk of phlebitis and DVT.
Pregnancy
Increased blood volume and pressure on pelvic veins during pregnancy elevates the risk of both superficial and deep vein phlebitis.
Obesity & Smoking
Both conditions impair circulation and increase inflammation, contributing to vein wall damage and phlebitis risk.
Phlebitis Treatments We Offer
Treating the underlying venous disease is key to preventing recurrent phlebitis. Our in-office procedures are minimally invasive and covered by most insurance plans.
Radiofrequency Ablation (RFA)
Treats underlying venous insufficiency to prevent recurrent phlebitis. Covered by most insurance.
Learn more →Varithena® (Polidocanol Foam)
Foam sclerant closes diseased veins that contribute to phlebitis and inflammation.
Learn more →Sclerotherapy
Injectable solution eliminates affected superficial veins and reduces inflammation.
Learn more →Ultrasound Diagnostics
Duplex ultrasound maps venous anatomy and identifies clots or reflux causing phlebitis.
Learn more →Phlebitis Treatment Is Covered by Most Insurance Plans
Our team handles insurance verification for you. Book a free screening and find out if you qualify.
Book Free Vein ScreeningFrequently Asked Questions
What is the difference between superficial and deep phlebitis?
Is phlebitis dangerous?
What causes phlebitis?
How is phlebitis treated?
Can phlebitis recur?
Does insurance cover phlebitis treatment?
Concerned About Phlebitis? See a Specialist Today.
Our board-certified vein specialists serve Michigan and South Carolina. Schedule your free vein screening today.