Thrombosed vein after mini arm lift. Could this have been caused by the electrical currents?

Clot formation has been documented to occur via three mechanisms including endothelial injury, stasis of blood and inflammation leading to hypercoagulability. I don't believe electrocautery led to your blood clotting, but you should ask your plastic surgeon. You should have your plastic surgeon check your vein soon as possible to be sure the inflammation dissipates and does not become more serious. Best, Dr. ALDO

Any trauma may predispose to clot formation.  More important than the cause would be to ensure that you are diagnosed and treated adequately.Superficial clots can be treated conservatively and generally resolve.  However, if the clot involves a deeper vein, it can communicate with larger vessels in your axilla and thorax which may mandate treatment with a blood thinner.  I would speak with your physician and ensure that additional treatment is not necessary.