Jalen Hurts Has Deep Vein Thrombosis and Blood Clots in His Lungs. Here’s What to Know

Clots become more common with age. Other risk factors include surgery, injury, prolonged inactivity, cancer, certain inherited conditions, and estrogen-containing medications. But young, active people can develop them, too.

To check for a leg clot, doctors usually use ultrasound. They move a handheld device over the skin to get pictures of the veins underneath, gently pressing as they go. A normal vein should flatten under that pressure.

With a clot, “you can’t squeeze it closed because that solid clot is in the way,” Barnes says.

Doctors typically use a specialized CT scan to look for clots in the lungs. Finding them in both lungs doesn’t, by itself, establish how sick someone is, Barnes says. Doctors also check oxygen levels, blood pressure, and whether the heart is struggling to pump blood through the lungs.

Pulmonary embolisms range from mild cases to medical emergencies, Moll emphasizes. Some people need treatment in the hospital, including medication that dissolves clots or a procedure to remove them. Many others can be treated with anticoagulants, commonly called blood thinners.