[Jan_Sobieski]

Deep Vein Thrombosis after COVID-19 mRNA Vaccination in a Young Man with Inferior Vena Cava Anomaly Leading to Recurrent Deep Vein Thrombosis

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812686/

[Valpal1]

LOL, "...Young Man with Inferior Vena Cava Anomaly Leading to Recurrent Deep Vein Thrombosis

While it's true that the Covid vax is implicated in clot risk it's also true that long flights have long been known to cause deep vein thrombosis as well.