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Superficial vein clot (thrombophlebitis)

Also called: Superficial thrombophlebitis, phlebitis, vein clot near the skin

A clot in a vein near the skin, causing a red, tender, firm cord. Usually not dangerous, but it can be linked to deeper clots.

FeelsRed, tender cord
TreatmentWarm compresses, NSAIDs

Overview

A clot forms in a vein just under the skin, making a red, tender cord.

If close to the groin, it may need an ultrasound.

Symptoms

Common signs:

  • Red, tender cord on the leg or arm

When to get medical care

Call 911Chest pain or shortness of breath.
Get care todayWhole-leg swelling or near the groin.
See a doctor soonA red tender vein.

Causes

Vein irritation.

Does it spread or run in families?

  • It isn't contagious. You can't catch it from someone else.

Who is more likely to get it

  • Varicose veins
  • IV lines

Possible complications

Diagnosis

A clinician examines.

Tests

Tests, if needed:

  • Ultrasound:

Treatment

Ease it.

Self-care

  • Warm compresses
  • Raise the leg
  • Keep walking

Medicines

Medicines that may help:

MedicineHelps withGood to know
Pain relievers
Pain and swellingAsk first if you have kidney, stomach, or heart problems.

OwieClear doesn't give doses: follow the label or your healthcare professional. Medicine names here are examples, not a full list.

Prevention

To lower your risk or prevent problems:

  • Move during long trips

Which doctor treats this

  • Start with your primary care provider (family doctor or internist).
  • They may send you to a vascular specialist (blood vessel doctor).

Children, pregnancy, and older adults

  • People with varicose veins: More common.

Pregnancy and breastfeeding

  • If you're pregnant or planning to be, tell your prenatal provider about this condition.
  • This condition needs closer checkups during pregnancy. Plan ahead with your doctor.
  • Don't start or stop any medicine on your own. Some are safe in pregnancy and some need to be changed.
  • Ask before taking any pain reliever. The FDA advises avoiding ibuprofen and naproxen after 20 weeks unless your doctor says to.
  • Breastfeeding: Most medicines are fine, but ask. The NIH LactMed database lists what's known about each one.

Outlook

Heals.

Getting ready for your visit

Bring a list of your symptoms and medicines.

Questions to ask

  • Do I need an ultrasound?

Research studies

Research studies test new ways to find and treat health problems. Some are looking for volunteers. Talk with your doctor before joining one.

Search ClinicalTrials.gov for studies on Superficial vein clot (thrombophlebitis)

Sources

Last updated 2026-11-12.