Deep vein thrombosis halts Damian Lillard’s season, but what is it and how is it treated?
DVT is a blood clot which develops in a vein, usually in the leg. It is a dangerous condition which requires urgent attention.

Milwaukee Bucks star Damian Lillard has been diagnosed with deep vein thrombosis in his right calf, the team announced Tuesday. He is on blood thinners and undergoing further testing, though no return date has been set.
Bucks GM Jon Horst emphasized that Lillard’s health is the top priority, noting that doctors consider his condition unlikely to recur. “We’re thankful this was caught early and treated quickly,” Horst said.
Lillard, 34, last played on March 18 and was initially sidelined with a calf injury. This season, he has averaged 24.9 points and 7.1 assists over 58 games. With 11 games left, the Bucks (40-31) are currently fifth in the East, also missing Jericho Sims (thumb) and Bobby Portis Jr. (suspension).
Milwaukee Bucks: Damian Lillard has sustained a deep vein thrombosis (blood clot) in his right calf. Lillard is on blood-thinning medication, which has stabilized the blood clot, and will continue with regular testing. He is out indefinite period. pic.twitter.com/CC7k9bXnZV
— Shams Charania (@ShamsCharania) March 26, 2025
What is deep vein thrombosis?
Deep vein thrombosis or DVT is a blood clot which develops in a vein, usually in the leg. It is common in people who are overweight and have sedentary lifestyles. It is related to other health conditions such as varicose veins and heart disease. Those who drink alcohol and smoke have an increased risk of suffering DVT although it can also happen for no obvious reason.
Deep vein thrombosis can cause leg pain or swelling. DVT is dangerous as blood clots inside the veins can break loose and start to move around bloodstream, eventually reaching other organs such as the lungs. Once trapped inside other organs, the clots block blood flow, which causes embolisms and other problems, such as venous thromboembolism (VTE).
How is DVT treated?
DVT is generally treated with blood-thinning medication - anticoagulants such as heparin and warfarin - courses last at least three months. Surgery is another option to remove the clot and stop them from forming.
The recovery process involves keeping active and to move a lot - lots of walking to increase blood flow and to keep the affected leg raised for periods. Patients who are taking blood-thinning medicine are also advised not to take any medium or long-haul flights as reduced cabin pressure and limited mobility increases the chances of developing blood clots.
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