Symptoms

Superficial thrombophlebitis signs and symptoms include:

• Warmth, tenderness and pain in the affected area
• Redness and swelling

Deep vein thrombosis signs and symptoms include:

• Pain
• Swelling

When a vein close to the surface of your skin is affected, you might see a red, hard cord just under the surface of your skin that's tender to the touch. When a deep vein in the leg is affected, your leg may become swollen, tender and painful.

When to see a doctor

See your doctor right away if you have a red, swollen or tender vein — especially if you have one or more risk factors for thrombophlebitis.

Call 911 or your local emergency number if:

• The vein swelling and pain are severe
• You also have shortness of breath or chest pain, are coughing up blood, or have other symptoms that may indicate a blood clot traveling to your lungs (pulmonary embolism)

Have someone take you to your doctor or emergency room, if possible. It might be difficult for you to drive, and it's helpful to have someone with you to help you remember the information you receive.