Symptoms

DVT signs and symptoms can include:

• Swelling in the affected leg. Rarely, there's swelling in both legs.
• Pain in your leg. The pain often starts in your calf and can feel like cramping or soreness.
• Red or discolored skin on the leg.
• A feeling of warmth in the affected leg.

Deep vein thrombosis can occur without noticeable symptoms.

When to see a doctor

If you develop signs or symptoms of DVT, contact your doctor.

If you develop signs or symptoms of a pulmonary embolism (PE) — a life-threatening complication of deep vein thrombosis — seek emergency medical help.

The warning signs and symptoms of a pulmonary embolism include:

• Sudden shortness of breath
• Chest pain or discomfort that worsens when you take a deep breath or when you cough
• Feeling lightheaded or dizzy, or fainting
• Rapid pulse
• Rapid breathing
• Coughing up blood