Morning
this has got to be the most discussed topic here (after bio or mech) and my experience is that most people have everything totally wrong.
The idea that a shaving nick leads to this is patently absurd
View attachment 890575
as you'd expect for life threatening injuries (leg ripped off in a car accident) the miniscule difference provided between warfarin and no warfarin is nil. So if you have a gunshot wound to the groin you're in as much trouble as anyone.
To be honest I can't see any difference between my bleeding response now and then; it is about what it was before I was on warfarin. My dentist even remarks that when doing cleans "if I didn't know you were on warfarin I wouldn't know.
The key to this in my view is proper INR management. Proper means be actually successful of being inside the designated range ... you know 2 ~ 3.
This just does not happen (statistically speaking) for people in clinics (where 70% time in range is cause for celebration). Myself I'm in range greater than 90% so much that I call 93% a bad year and 97% a good year.
I recommend you read this blog post of mine from 2014
https://cjeastwd.blogspot.com/2014/09/managing-my-inr.html
PS: I meant to add, that my Dad used to regularly nick his arm or back of his hand and it bled a lot. He was never on warfarin or any blood thinners. I know that working with him (with steel or aluminium, drills and grinders building truck bodies or working in boats) that he did bleed more from nicks and scratches at his age than I do now at that age (also working with steel and stuff)
https://cjeastwd.blogspot.com/2018/01/raising-roof.html
I commenced warfarin in late 2011, so lets call it 2012.
Best Wishes