One factor not mentioned by the good dr is the possibility of Factor V Lieden. Factor V can create blood clots in Factor V positive individual. A blood test is required to determine if one is positive in one or both genes passed on via genetics.
I wouldn’t have know anything about F-V lieden had it not been discovered in my sis following a surgical procedure. We’re thinking a nephew who died from a clot may have been F-V positive but we’ve no way of knowing now. I was tested and came back positive in one gene. Factor V Lieden is more common in Scandinavian individuals.
Factor V Lieden bump. My family has this. I have advised my daughter of the risk of death with taking the pill.