What are the symptoms of antithrombin deficiency?

What are the symptoms of antithrombin deficiency?

Different people with antithrombin deficiency may have different symptoms, but your first blood clot usually happens before age 40. The most common symptoms include:

• Deep vein thrombosis (DVT).
• Pulmonary embolism.

Although it’s not as common, clots can also happen in veins in your brain and abdomen.