"be clotted" - Translation from English to Arabic

He used to be a police inspector in Goa... and has blood clotted in his head ever since a thief struck him with a stick
كَانَ مفتش شرطة في جوا ولَهُ دمُّ تَخثّرَ في رأسه مُنذُ ذلك الوقت... لصّ ضَربَه بعصا