Blood Clots?

Closeup side view of early 30's unrecognizable doctor examining a knee of a senior gentleman during an appointment. The doctor is gently touching the tendons around the knee and the knee cap and trying to determine the cause of pain.
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https://www.msn.com/en-us/health/medical/what-are-the-warning-signs-of-a-blood-clot/ar-AAKusXN?ocid=msnews

A blood clot can be a serious medical problem. It can even lead to a heart attack, stroke or death. In fact, 274 people die every day from blood clots, according to theĀ National Blood Clot Alliance.

Vanessa Caceres